Udaipur Solar Observatory (USO) Publications


  1. Binal D. Patel, Bhuvan Joshi, Kyung-Suk Cho, Rok-Soon Kim, Yong-Jae-moon, Near-Earth Interplanetary Coronal Mass Ejections and Their Association with DH Type II Radio Bursts During Solar Cycles 23 and 24, Solar Physics, Date of Publication: 25/10/2022
  2. Sandeep Kumar and Nandita Srivastava, 2022, A Parametric Study of Performance of Two Solar Wind Velocity Forecasting Models During 2006–2011, Space Weather, Date of Publication: 02/09/2022
  3. Prabir K. Mitra, Bhuwan Joshi, Astrid M. Veronig, Thomas Wiegelmann, 2022, Multiwavelength Signatures of Episodic Null Point Reconnection in a Quadrupolar Magnetic Configuration and the Cause of Failed Flux Rope Eruption, The Astrophysical Journal , Date of Publication: 15/02/2022
  4. K. Bora, R. Bhattacharyya, Avijeet Prasad, Bhuwan Joshi, and Qiang Hu , 2022, Comparison of the Hall Magnetohydrodynamics and Magnetohydrodynamics Evolution of a Flaring Solar Active Region, The Astrophysical Jouranl, Date of Publication: 04/02/2022
  5. Suvadip Sinha, Om Gupta, Vishal Singh, B. Lekshmi, Dibyendu Nandy, Dhrubaditya Mitra, Saikat Chatterjee, Sourangshu Bhattacharya, Saptarshi Chatterjee, Nandita Srivastava, Axel Brandenburg, and Sanchita Pal, 2022, A Comparative Analysis of Machine-learning Models for Solar Flare Forecasting: Identifying High-performing Active Region Flare Indicators, The Astrophysical Journal, Date of Publication: 12/08/2022
  6. Satyam Agarwal, Ramit Bhattacharyya, Thomas Wiegelmann, 2022, Effects of Initial Conditions on Magnetic Reconnection in a Solar Transient, Solar Physics, Date of Publication: 18/07/2022
  7. Suraj Sahu, Bhuwan Joshi, Alphonse C. Sterling, Prabir K. Mitra, Ronald L. Moore, 2022, Homologous Compact Major Blowout-eruption Solar Flares and their Production of Broad CMEs, The Astrophysical Journal , Date of Publication: 03/05/2022
  8. Girjesh R Gupta, Sushree S Nayak, 2022, Spectroscopic and imaging observations of transient hot and cool loops by IRIS and SDO, Monthly Notices of the Royal Astronomical Society, Date of Publication: 31/03/2022


  1. Jaidev Sharma, Brajesh Kumar, Anil K Malik, Hari Om Vats, 2021, Differential rotation of the solar transition region from STEREO/EUVI 30.4-nm imagesMonthly Notices of the Royal Astronomical Society, Volume 506, Pages 4952-4959, Date of Publication: 09/08/2021
  2. Rohan Louis, Avijeet Prasad, Christian Beck, Debi Prasad Choudhary, Mehmet S. Yalim, 2021, Heating of the solar chromosphere in a sunspot light bridge by electric currentsAstronomy & Astrophysics Letters, 652, 4, Date of Publication: 13/07/2021
  3. Bhuwan Joshi, Prabir K. Mitra, R. Bhattacharyya, Kushagra Upadhyay, Divya Oberoi, K. Sasikumar Raja, Christian Monstein, 2021, Two-Stage Evolution of an Extended C-Class Eruptive Flaring Activity from Sigmoid Active Region NOAA 12734: SDO and Udaipur-CALLISTO ObservationsSolar Physics, Date of Publication: 03/06/2021
  4. K. Bora, R. Bhattacharyya, and P. K. Smolarkiewicz, Evolution of Three-dimensional Coherent Structures in Hall MagnetohydrodynamicsThe Astrophysical Journal, 906, 2
  5. Navin Chandra Joshi, Bhuwan Joshi, Prabir K. Mitra, Evolutionary stages and triggering process of a complex eruptive flare with circular and parallel ribbonsMonthly Notices of the Royal Astronomical Society
  6. Sanjay Kumar, Sushree S. Nayak, Avijeet Prasad, Ramit Bhattacharyya, Magnetic Reconnections in the Presence of Three-Dimensional Magnetic Nulls and Quasi-Separatrix Layers , Solar Physics, 296, 26
  7. Prabir K. Mitra, Bhuwan Joshi, Successive occurrences of quasi-circular ribbon flares in a fan-spine-like configuration involving hyperbolic flux tubeMonthly Notices of the Royal Astronomical Society 
  8. Rohan Eugene Louis, Julia K. Thalmann, Homologous Flaring Activity over a Sunspot Light Bridge in an Emerging Active RegionThe Astrophysical Journal Letters, 907, L4
  9. Sushree S. Nayak, R. Bhattacharyya, Sanjay Kumar, Magnetohydrodynamics model of an X-class flare in NOAA active region 12017 initiated with non-force-free extrapolation, Physics of Plasmas, 28, 2
  10. Yogesh, D. Chakrabarty, N. Srivastava, Evidence for distinctive changes in the solar wind helium abundance in cycle 24Monthly Notices of the Royal Astronomical Society Letters
  11. Hema Kharayat, Bhuwan Joshi, Ramesh Chandra, Radio-loud and radio-quiet CMEs: solar cycle dependency, influence on cosmic ray intensity, and geo-effectiveness , Astrophysics and Space Science, 366, 2, 24
  12. Pooja Devi, Pascal Démoulin, Ramesh Chandra ,Reetika Joshi, Brigitte Schmieder, Bhuwan Joshi, Observations of a prominence eruption and loop contraction Astronomy & Astrophysics, 647, id.A85, 15 pp.
  13. Erika Palmerio, Nariaki V. Nitta, Tamitha Mulligan, Marilena Mierla, Jennifer O’Kane, Ian G. Richardson, Suvadip Sinha, Nandita Srivastava, Stephanie L. Yardley and Andrei N. Zhukov, 2021, Investigating Remote-Sensing Techniques to Reveal Stealth Coronal Mass Ejections, Frontiers in Astronomy and Space Science
  14. Wageesh Mishra, Kunjal Dave, Nandita Srivastava, Luca TeriacaMultipoint remote and in situ observations of interplanetary coronal mass ejection structures during 2011 and associated geomagnetic storms, Monthly Notices of the Royal Astronomical Society, Volume 506, Issue 1, September 2021, Pages 1186–1197, Date of Publication: 13/07/2021
  15. Binal D. Patel, Bhuwan Joshi, Kyung-Suk Cho, Rok-Soon Kim , 2021, DH Type II Radio Bursts During Solar Cycles 23 and 24: Frequency-Dependent Classification and Their Flare-CME AssociationsSolar Physics, Date of Publication: 29/09/2021
  16. Wageesh Mishra,Urmi Doshi and Nandita Srivastava , 2021, Radial Sizes and Expansion Behavior of ICMEs in Solar Cycles 23 and 24Front. Astron. Space Sci., Date of Publication: 13/09/2021


  1. Prabir K. Mitra, Bhuwan Joshi, Astrid M. Veronig, Ramesh Chandra, Karin Dissauer, Thomas Wiegelmann, Eruptive-Impulsive Homologous M-class Flares Associated with Double-decker Flux Rope Configuration in Minisigmoid of NOAA 12673The Astrophysical Journal, 900, 23.
  2. Kushagra Upadhyay, Bhuwan Joshi, Prabir K. Mitra, Ramit Bhattacharyya, Divya Oberoi, Christian Monstein, 2020, Solar Radio Observation Using CALLISTO at the USO/PRL, Udaipur2019 IEEE MTT-S International Microwave and RF Conference (IMARC)
  3. Hirdesh Kumar, and Brajesh Kumar, On the seismic emission in sunspots associated with Lorentz force changes accompanying major flaresMonthly Notices of the Royal Astronomical Society
  4. Suraj Sahu, Bhuwan Joshi, Prabir K. Mitra, Astrid Veronig, V. Yurchyshyn, 2020, Hard X-Ray Emission from an Activated Flux Rope and Subsequent Evolution of an Eruptive Long-duration Solar FlareThe Astrophysical Journal
  5. Pooja Devi, Bhuwan Joshi, Ramesh Chandra, Prabir K. Mitra, Astrid M. Veronig, Reetika Joshi, 2020, Development of a Confined Circular-Cum-Parallel Ribbon Flare and Associated Pre-Flare Activity, Solar Physics , 295, 75. 
  6. Sharma, Aishawnnya, Tripathi, Durgesh, Erdélyi, Robertus, Gupta, Girjesh R., & Ahmed, Gazi A., 2020, Wave amplitude modulation in fan loops as observed by AIA/SDO, Astronomy and Astrophysics , 638, A6. 
  7. Sangeetha, C. R., Tripathi, D., & Rajaguru, S. P. ,2020, Signatures of Untwisting Magnetic Field in a Small Emerging Bipole in the Solar Photosphere, The Astrophysical Journal, 895, 67.
  8. Sharma, J., Kumar, B., Malik, A. K., & Vats, H. O. ,2020, On the variation of solar coronal rotation using SDO/AIA observations, Monthly Notices of the Royal Astronomical Society, 492, 5391.
  9. Sarkar, R., Gopalswamy, N., & Srivastava, N. ,2020, An Observationally Constrained Analytical Model for Predicting the Magnetic Field Vectors of Interplanetary Coronal Mass Ejections at 1 au, The Astrophysical Journal, 888, 121.
  10. Mitra, P. K., Joshi, B., & Prasad, A. ,2020, Identification of Pre-flare Processes and Their Possible Role in Driving a Large-scale Flux Rope Eruption with Complex M-class Flare in the Active Region NOAA 12371, Solar Physics, 295, 29.
  11. Raja Bayanna, A., Venkatakrishnan, P., Rengaswamy, S., & Mathew, S. K. ,2020, Fizeau Mask Interferometry of Solar Features Using the Multi-application Solar Telescope at the Udaipur Solar Observatory, Solar Physics, 295, 30.
  12. Nayak, S. S., Bhattacharyya, R., Smolarkiewicz, P. K., Kumar, S., & Prasad, A. ,2020, On the Spontaneous Generation of Three-dimensional Magnetic Nulls, The Astrophysical Journal, 892, 44.
  13. N. P. S. Mithun, Santosh V. Vadawale, Aveek Sarkar, M. Shanmugam, Arpit R. Patel, Biswajit Mondal, Bhuwan Joshi, P. Janardhan, Hiteshkumar L. Adalja, Shiv Kumar Goyal, Tinkal Ladiya, Neeraj Kumar Tiwari, Nishant Singh, Sushil Kumar, Manoj K. Tiwari, M. H. Modi, and Anil Bhardwaj , 2020, Solar X-Ray Monitor on Board the Chandrayaan-2 Orbiter: In-Flight Performance and Science Prospects, Solar Physics
  14. Jaidev Sharma, Anil Malik, Brajesh Kumar, and Hari Om Vats, 2020, Evidence of strong relationship between hemispheric asymmetry in solar coronal rotation and solar activity during solar cycle 24, Monthly Notices of the Royal Astronomical Society
  15. Rohan E. Louis, Christian Beck, Debi P. Choudhary, 2020, The formation of an atypical sunspot light bridge as a result of large-scale flux emergence, Astrophysical Journal
  16. Anche, Ramya M., Ranganathan, M., Mathew, Shibu K., Sankarasubramanian, K., Anupama, G. C., Ramya, Bireddy, Prasad, Avijeet, Yadav, Rahul, Bayanna, Raja, Polarization model for the multi-application solar telescope at the Udaipur Solar ObservatoryProceedings of the SPIE


  1. Hernandez-Perez, Aaron, Su, Yang, Thalmann, Julia, Veronig, Astrid M., Dickson, Ewan C., Dissauer, Karin, Joshi, Bhuwan, & Chandra, Ramesh, 2019, A Hot Cusp-shaped Confined Solar FlareThe Astrophysical Journal , 887, L28.
  2. Louis, Rohan Eugene, 2019, Investigation of a Confined C-Class Flare in an Arch Filament System Close to a Regular SunspotJournal of Geophysical Research (Space Physics) , 124, 8255.
  3. Sarkar, Ranadeep, Srivastava, Nandita, & Veronig, Astrid M., 2019, Lorentz Force Evolution Reveals the Energy Build-up Processes during Recurrent Eruptive Solar FlaresThe Astrophysical Journal  Letters, 885, L17.
  4. Del Zanna, G., Gupta, G. R., & Mason, H. E., 2019, Hinode EIS line widths in the quiet corona up to 1.5 RAstronomy and Astrophysics , 631, A163.
  5. Mitra, Prabir K. & Joshi, Bhuwan, 2019, Preflare Processes, Flux Rope Activation, Large-scale Eruption, and Associated X-class Flare from the Active Region NOAA 11875The Astrophysical Journal , 884, 46.
  6. Sinha, Suvadip, Srivastava, Nandita, & Nandy, Dibyendu, 2019, Solar Filament Eruptions as Precursors to Flare-CME Events: Establishing the Temporal ConnectionThe Astrophysical Journal , 880, 84.
  7. Mishra, Wageesh, Srivastava, Nandita, Wang, Yuming, Mirtoshev, Zavkiddin, Zhang, Jie, & Liu, Rui, 2019, Mass loss via solar wind and coronal mass ejections during solar cycles 23 and 24Monthly Notices of the Royal Astronomical Society , 486, 4671.
  8. Gupta, G. R., Del Zanna, G., & Mason, H. E., 2019, Exploring the damping of Alfvén waves along a long off-limb coronal loop, up to 1.4 RAstronomy and Astrophysics , 627, A62.
  9. Syed Ibrahim, M., Joshi, Bhuwan, Cho, K. -S., Kim, R. -S., & Moon, Y. -J., 2019, Interplanetary Coronal Mass Ejections During Solar Cycles 23 and 24: Sun-Earth Propagation Characteristics and Consequences at the Near-Earth RegionSolar Physics , 294, 54.
  10. Sarkar, Ranadeep, Srivastava, Nandita, Mierla, Marilena, West, Matthew J., & D'Huys, Elke, 2019, Evolution of the Coronal Cavity From the Quiescent to Eruptive Phase Associated with Coronal Mass EjectionThe Astrophysical Journal , 875, 101.
  11. Nayak, Sushree S., Bhattacharyya, R., Prasad, A., Hu, Qiang, Kumar, Sanjay, & Joshi, B., 2019, A Data-constrained Magnetohydrodynamic Simulation of Successive Events of Blowout Jet and C-class Flare in NOAA AR 12615The Astrophysical Journal , 875, 10.
  12. Hernandez-Perez, Aaron, Su, Yang, Veronig, Astrid M., Thalmann, Julia, Gömöry, Peter, & Joshi, Bhuwan, 2019, Pre-eruption Processes: Heating, Particle Acceleration, and the Formation of a Hot Channel before the 2012 October 20 M9.0 Limb FlareThe Astrophysical Journal , 874, 122.
  13. Joshi, Navin Chandra, Zhu, Xiaoshuai, Schmieder, Brigitte, Aulanier, Guillaume, Janvier, Miho, Joshi, Bhuwan, Magara, Tetsuya, Chandra, Ramesh, & Inoue, Satoshi, 2019, Generalization of the Magnetic Field Configuration of Typical and Atypical Confined FlaresThe Astrophysical Journal , 871, 165.
  14. Sindhuja, G., Srivastava, Nandita, Veronig, A. M., & Pötzi, W., 2019, Study of reconnection rates and light curves in solar flares from low and mid chromosphereMonthly Notices of the Royal Astronomical Society , 482, 3744.


  1. Mitra, Prabir K., Joshi, Bhuwan, Prasad, Avijeet, Veronig, Astrid M., & Bhattacharyya, R., 2018, Successive Flux Rope Eruptions from δ-sunspots Region of NOAA 12673 and Associated X-class Eruptive Flares on 2017 September 6The Astrophysical Journal , 869, 69.
  2. Srivastava, Abhishek K., McIntosh, Scott W., Arge, N., Banerjee, Dipankar, Dikpati, Mausumi, Dwivedi, Bhola N., Guhathakurta, Madhulika, Karak, B. B., Leamon, Robert J., Matthew, Shibu K., Munoz-Jaramillo, Andres, Nandy, D., Norton, Aimee, Upton, L., Chatterjee, S., Mazumder, Rakesh, Rao, Yamini K., & Yadav, Rahul, 2018, The Extended Solar Cycle: Muddying the Waters of Solar/Stellar Dynamo Modeling Or Providing Crucial Observational Constraints?Frontiers in Astronomy and Space Sciences , 5, 38.
  3. Ranganathan, Mohanakrishna, Sankarasubramanian, K., Bayanna, A. R., & Mathew, S. K., 2018, Lenslet Array and Fabry-Pérot Based Hyperspectral ImagingThe Astrophysical Journal , 867, 77.
  4. Sivaram, C., Arun, Kenath, & Prasad, A., 2018, Extremal charged black holes, dark matter and dark energyAstrophysics and Space Science , 363, 202.
  5. Pal, Sanchita, Nandy, Dibyendu, Srivastava, Nandita, Gopalswamy, Nat, & Panda, Suman, 2018, Dependence of Coronal Mass Ejection Properties on Their Solar Source Active Region Characteristics and Associated Flare Reconnection FluxThe Astrophysical Journal , 865, 4.
  6. Chandra, Ramesh, Chen, P. F., Joshi, Reetika, Joshi, Bhuwan, & Schmieder, Brigitte, 2018, Observations of Two Successive EUV Waves and Their Mode ConversionThe Astrophysical Journal , 863, 101.
  7. Joshi, Bhuwan, Ibrahim, M. Syed, Shanmugaraju, A., & Chakrabarty, D., 2018, A Major Geoeffective CME from NOAA 12371: Initiation, CME-CME Interactions, and Interplanetary ConsequencesSolar Physics , 293, 107.
  8. Prasad, A., Bhattacharyya, R., Hu, Qiang, Kumar, Sanjay, & Nayak, Sushree S., 2018, A Magnetohydrodynamic Simulation of Magnetic Null-point Reconnections in NOAA AR 12192, Initiated with an Extrapolated Non-force-free FieldThe Astrophysical Journal , 860, 96.
  9. Zhang, Jie, Blanco-Cano, Xochitl, Nitta, Nariaki, Srivastava, Nandita, & Mandrini, Cristina H., 2018, Editorial: Earth-affecting Solar TransientsSolar Physics , 293, 80.
  10. Yadav, Rahul & Mathew, Shibu K., 2018, Physical Properties of Umbral Dots Observed in Sunspots: A Hinode ObservationSolar Physics , 293, 54.
  11. Yadav, Rahul, Louis, Rohan E., & Mathew, Shibu K., 2018, Investigating the Relation between Sunspots and Umbral DotsThe Astrophysical Journal , 855, 8.
  12. Sarkar, Ranadeep & Srivastava, Nandita, 2018, A Comparative Study of the Eruptive and Non-eruptive Flares Produced by the Largest Active Region of Solar Cycle 24Solar Physics , 293, 16.
  13. Srivastava, Nandita, Mishra, Wageesh, & Chakrabarty, D., 2018, Interplanetary and Geomagnetic Consequences of Interacting CMEs of 13 - 14 June 2012Solar Physics , 293, 5.
  14. Yadav, Vipin K., Srivastava, Nandita, Ghosh, S. S., Srikar, P. T., & Subhalakshmi, Krishnamoorthy, 2018, Science objectives of the magnetic field experiment onboard Aditya-L1 spacecraftAdvances in Space Research , 61, 749.
  15. Mangalam, A. & Prasad, A., 2018, Topological and statistical properties of nonlinear force-free fieldsAdvances in Space Research , 61, 738.
  16. Arun, Kenath, Gudennavar, S. B., Prasad, A., & Sivaram, C., 2018, Alternate models to dark energyAdvances in Space Research , 61, 567.


  1. Raghavendra Prasad B., Banerjee Dipankar, Singh Jagdev, Nagabhushana S., Kumar Amit, Kamath P. U., Kathiravan S., Venkata Suresh, Rajkumar N., Natarajan V., Juneja Madhur, Somu Pawan, Pant Vaibhav, Shaji Nigar, Sankarsubramanian K., Patra Asit, Venkateswaran R., Adoni Abhijit Avinash, Narendra S., Haridas T. R., Mathew Shibu K., Mohan Krishna R., Amareswari K., Jaiswal Bhavesh, Visible Emission Line Coronagraph on Aditya-L1, Current Science, Vol 113, No. 4, (2017)
  2. Janardhan P., Vadawale Santosh, Bapat Bhas, Subramanian K. P., Chakrabarty D., Kumar Prashant, Sarkar Aveek, Srivastava Nandita, Satheesh Thampi R., Yadav Vipin K., Dhanya M. B., Nampoothiri Govind G., Abhishek J. K., Bhardwaj Anil, Subhalakshmi K., Probing the heliosphere using in situ payloads on-board Aditya-L1, Current Science, Vol 113, No. 4, (2017)
  3. Sankarasubramanian K., Sudhakar Manju, Nandi Anuj, Ramadevi M. C., Adoni Abhijit Avinash, Kushwaha Ankur, Agarwal Anil, Dey Arjun, Joshi Bhuwan, Singh Brajpal, Girish V., Tomar Ishan, Majhi Kamal Kumar, Olekar Manjunath, Bug Monoj, Pala Manohar,Thakur Mukund Kumar, Badagandi Rajeev R., Ravishankar B. T., Garg Sarthak, Sitaramamurthy N., Sridhara N., Umapathy C. N., Gupta Vinod Kumar, Agrawal Vivek Kumar, Yougandar B., X-ray spectrometers on-board Aditya-L1 for solar flare studiesCurrent Science, Vol 113, No. 4, (2017)
  4. Venkatakrishnan P., Mathew Shibu K., Srivastava Nandita, Bayanna A. R., Kumar Brajesh, Ramya Bireddy, Jain Naresh, Saradava Mukesh, The Multi Application Solar Telescope, Current Science, Vol 113, No. 4, (2017)
  5. Joshi, Bhuwan, Thalmann, Julia K., Mitra, Prabir K., Chandra, Ramesh, & Veronig, Astrid M., 2017, Observational and Model Analysis of a Two-ribbon Flare Possibly Induced by a Neighboring Blowout JetThe Astrophysical Journal , 851, 29.
  6. Kumar, Brajesh, Mathur, Savita, García, Rafael A., & Jiménez, Antonio, 2017, On the signatures of flare-induced global waves in the Sun: GOLF and VIRGO observationsMonthly Notices of the Royal Astronomical Society , 471, 4677.
  7. Dhara, Sajal Kumar, Belur, Ravindra, Kumar, Pankaj, Banyal, Ravinder Kumar, Mathew, Shibu K., & Joshi, Bhuwan, 2017, Trigger of Successive Filament Eruptions Observed by SDO and STEREOSolar Physics , 292, 145.
  8. Louis, Rohan E., Bayanna, A. Raja, & Socas Navarro, Héctor, 2017, Design of an adaptable Stokes polarimeter for exploring chromospheric magnetismAdvances in Space Research , 60, 1547.
  9. Mishra, Wageesh, Wang, Yuming, Srivastava, Nandita, & Shen, Chenglong, 2017, Assessing the Nature of Collisions of Coronal Mass Ejections in the Inner HeliosphereThe Astrophysical Journal Supplement Series , 232, 5.
  10. Mathew, Shibu K., Bayanna, Ankala Raja, Tiwary, Alok Ranjan, Bireddy, Ramya, & Venkatakrishnan, Parameswaran, 2017, First Observations from the Multi-Application Solar Telescope (MAST) Narrow-Band ImagerSolar Physics , 292, 106.
  11. Yadav, Rahul, Mathew, Shibu K., & Tiwary, Alok Ranjan, 2017, SPIN: An Inversion Code for the Photospheric Spectral LineSolar Physics , 292, 105.
  12. Dumbović, Mateja, Srivastava, Nandita, Rao, Yamini K., Vršnak, Bojan, Devos, Andy, & Rodriguez, Luciano, 2017, Validation of the CME Geomagnetic Forecast Alerts Under the COMESEP Alert SystemSolar Physics , 292, 96.
  13. Kumar, Sanjay, Bhattacharyya, R., Dasgupta, B., & Janaki, M. S., 2017, Chaotic magnetic field lines and spontaneous development of current sheetsPhysics of Plasmas , 24, 082902.
  14. Kumar, Sanjay & Bhattacharyya, R., 2017, Simulated evolution of three-dimensional magnetic nulls leading to generation of cylindrically-shaped current sheetsPhysics of Plasmas , 24, 064503.
  15. Prasad, A., Bhattacharyya, R., & Kumar, Sanjay, 2017, Magnetohydrodynamic Modeling of Solar Coronal Dynamics with an Initial Non-force-free Magnetic FieldThe Astrophysical Journal , 840, 37.
  16. Tiwary, Alok Ranjan, Mathew, Shibu K., Bayanna, A. Raja, Venkatakrishnan, P., & Yadav, Rahul, 2017, Imaging Spectropolarimeter for the Multi-Application Solar Telescope at Udaipur Solar Observatory: Characterization of Polarimeter and Preliminary ObservationsSolar Physics , 292, 49.
  17. Chandra, R., Mandrini, C. H., Schmieder, B., Joshi, B., Cristiani, G. D., Cremades, H., Pariat, E., Nuevo, F. A., Srivastava, A. K., & Uddin, W., 2017, Blowout jets and impulsive eruptive flares in a bald-patch topologyAstronomy and Astrophysics , 598, A41.
  18. Joshi, Bhuwan, Kushwaha, Upendra, Veronig, Astrid M., Dhara, Sajal Kumar, Shanmugaraju, A., & Moon, Yong-Jae, 2017, Formation and Eruption of a Flux Rope from the Sigmoid Active Region NOAA 11719 and Associated M6.5 Flare: A Multi-wavelength StudyThe Astrophysical Journal , 834, 42.
  19. Alok Ranjan Tiwary, A. Raja Bayanna, Shibu K. Mathew, 2017, Estimation of order parameter of a liquid crystal variable retarder using Haller’s approximation,  Applied Optics, 56, 14, 4180-4184.


  1. Joshi, Bhuwan, Kushwaha, Upendra, Veronig, Astrid M., & Cho, K. -S., 2016, Pre-flare Coronal Jet and Evolutionary Phases of a Solar Eruptive Prominence Associated with the M1.8 Flare: SDO and RHESSI ObservationsThe Astrophysical Journal , 832, 130.
  2. Prasad, A. & Bhattacharyya, R., 2016, A viable non-axisymmetric non-force-free field to represent solar active regionsPhysics of Plasmas , 23, 114504.
  3. Mishra, Wageesh, Wang, Yuming, & Srivastava, Nandita, 2016, On Understanding the Nature of Collisions of Coronal Mass Ejections Observed by STEREOThe Astrophysical Journal , 831, 99.
  4. Kumar, Sanjay, Bhattacharyya, R., Joshi, Bhuwan, & Smolarkiewicz, P. K., 2016, On the Role of Repetitive Magnetic Reconnections in Evolution of Magnetic Flux Ropes in Solar CoronaThe Astrophysical Journal , 830, 80.
  5. Kumar, Brajesh, Raja Bayanna, Ankala, Venkatakrishnan, Parameswaran, & Kuchandy Mathew, Shibu, 2016, Analysis of sudden variations in photospheric magnetic fields during a large flare and their influences in the solar atmosphereResearch in Astronomy and Astrophysics , 16, 129.
  6. Tomczyk, S., Mathew, S. K., & Gallagher, D., 2016, Development of a tunable filter for coronal polarimetryJournal of Geophysical Research (Space Physics) , 121, 6184.
  7. Ambastha, Ashok, 2016, Solar activity and explosive transient eruptionsAsian Journal of Physics , 25, 267.
  8. Kumar, Sanjay & Bhattacharyya, R., 2016, Continuous development of current sheets near and away from magnetic nullsPhysics of Plasmas , 23, 044501.


  1. Mishra, Wageesh, Srivastava, Nandita, & Singh, Talwinder, 2015, Kinematics of interacting CMEs of 25 and 28 September 2012Journal of Geophysical Research (Space Physics) , 120, 10,221.
  2. Louis, Rohan E., Bellot Rubio, Luis R., de la Cruz Rodríguez, Jaime, Socas-Navarro, Héctor, & Ortiz, Ada, 2015, Small-scale magnetic flux emergence in a sunspot light bridgeAstronomy and Astrophysics , 584, A1.
  3. Joshi, B., Bhattacharyya, R., Pandey, K. K., Kushwaha, U., & Moon, Yong-Jae, 2015, Evolutionary aspects and north-south asymmetry of soft X-ray flare index during solar cycles 21, 22, and 23Astronomy and Astrophysics , 582, A4.
  4. Vemareddy, Panditi, Venkatakrishnan, Parameswaran, & Karthikreddy, Solipuram, 2015, Flux emergence in the solar active region NOAA 11158: the evolution of net currentResearch in Astronomy and Astrophysics , 15, 1547.
  5. Kumar, Sanjay, Bhattacharyya, R., & Smolarkiewicz, P. K., 2015, On the role of topological complexity in spontaneous development of current sheetsPhysics of Plasmas , 22, 082903.
  6. Tiwari, Sanjiv K., Falconer, David A., Moore, Ronald L., Venkatakrishnan, P., Winebarger, Amy R., & Khazanov, Igor G., 2015, Near-Sun speed of CMEs and the magnetic nonpotentiality of their source active regionsGeophysical Research Letters , 42, 5702.
  7. Kushwaha, Upendra, Joshi, Bhuwan, Veronig, Astrid M., & Moon, Yong-Jae, 2015, Large-scale Contraction and Subsequent Disruption of Coronal Loops During Various Phases of the M6.2 Flare Associated with the Confined Flux Rope EruptionThe Astrophysical Journal , 807, 101.
  8. Mishra, Wageesh, Srivastava, Nandita, & Chakrabarty, D., 2015, Evolution and Consequences of Interacting CMEs of 9 - 10 November 2012 Using STEREO/SECCHI and In Situ ObservationsSolar Physics , 290, 527.
  9. Kumar, Dinesh, Bhattacharyya, R., & Smolarkiewicz, P. K., 2015, Repetitive formation and decay of current sheets in magnetic loops: An origin of diverse magnetic structuresPhysics of Plasmas , 22, 012902.
  10. Mishra, Wageesh & Srivastava, Nandita, 2015, Heliospheric tracking of enhanced density structures of the 6 October 2010 CMEJournal of Space Weather and Space Climate , 5, A20.
  11. Raja Bayanna, A., Louis, Rohan E., Chatterjee, S., Mathew, Shibu K., & Venkatakrishnan, P., 2015, Membrane-based deformable mirror: intrinsic aberrations and alignment issuesApplied Optics , 54, 1727.


  1. Vemareddy, P. & Zhang, J., 2014, Initiation and Eruption Process of Magnetic Flux Rope from Solar Active Region NOAA 11719 to Earth-directed CMEThe Astrophysical Journal , 797, 80.
  2. Raja Bayanna, A., Mathew, Shibu K., Kumar, Brajesh, Louis, Rohan E., & Venkatakrishnan, P., 2014, A study of the relation between intensity oscillations and magnetic field parameters in a sunspot: Hinode observationsResearch in Astronomy and Astrophysics , 14, 1458-1468.
  3. Raja Bayanna, A., Mathew, Shibu K., Venkatakrishnan, P., & Srivastava, N., 2014, Narrow-Band Imaging System for the Multi-application Solar Telescope at Udaipur Solar Observatory: Characterization of Lithium Niobate EtalonsSolar Physics , 289, 4007.
  4. Mishra, Wageesh & Srivastava, Nandita, 2014, Morphological and Kinematic Evolution of Three Interacting Coronal Mass Ejections of 2011 February 13-15The Astrophysical Journal , 794, 64.
  5. Louis, Rohan E., Beck, Christian, Mathew, Shibu K., & Venkatakrishnan, P., 2014, Anomalous flows in a sunspot penumbraAstronomy and Astrophysics , 570, A92.
  6. Vemareddy, P. & Wiegelmann, T., 2014, Quasi-static Three-dimensional Magnetic Field Evolution in Solar Active Region NOAA 11166 Associated with an X1.5 FlareThe Astrophysical Journal , 792, 40.
  7. Kushwaha, Upendra, Joshi, Bhuwan, Cho, Kyung-Suk, Veronig, Astrid, Tiwari, Sanjiv Kumar, & Mathew, S. K., 2014, Impulsive Energy Release and Non-thermal Emission in a Confined M4.0 Flare Triggered by Rapidly Evolving Magnetic StructuresThe Astrophysical Journal , 791, 23.
  8. Suthar, Yogita, Venkatakrishnan, P., Ravindra, B., & Jaaffrey, S. N. A., 2014, The Evolution of the Net Twist Current and the Net Shear Current in Active Region NOAA 10930Solar Physics , 289, 2459.
  9. Kumar, Sanjay, Bhattacharyya, R., & Smolarkiewicz, P. K., 2014, Formation of magnetic discontinuities through viscous relaxationPhysics of Plasmas , 21, 052904.
  10. Goel, Suruchi & Mathew, Shibu K., 2014, Automated Detection, Characterization, and Tracking of Sunspots from SoHO/MDI Continuum ImagesSolar Physics , 289, 1413.
  11. Mishra, Wageesh, Srivastava, Nandita, & Davies, Jackie A., 2014, A Comparison of Reconstruction Methods for the Estimation of Coronal Mass Ejections Kinematics Based on SECCHI/HI ObservationsThe Astrophysical Journal , 784, 135.
  12. Raja Bayanna, Ankala, Kumar, Brajesh, Venkatakrishnan, Parameswaran, Kunchandy Mathew, Shibu, Ravindra, Belur, Mathur, Savita, & Garcia, Rafael A., 2014, On the line profile changes observed during the X2.2 class flare in the active region NOAA 11158Research in Astronomy and Astrophysics , 14, 207-220.
  13. Maurya, R. A., Ambastha, A., & Chae, J., 2014, Activity-related variations of high-degree p-mode amplitude, width, and energy in solar active regionsAstronomy and Astrophysics , 561, A123.


  1. Joshi, Anand D., Srivastava, Nandita, Mathew, Shibu K., & Martin, Sara F., 2013, Rapid Formation and Disappearance of a Filament BarbSolar Physics , 288, 191.
  2. Kumar, Dinesh, Bhattacharyya, R., & Smolarkiewicz, P. K., 2013, Formation of magnetic discontinuities through superposition of force-free magnetic fields: Periodic boundariesPhysics of Plasmas , 20, 112903.
  3. Vemareddy, P., Ambastha, A., & Wiegelmann, T., 2013, Magnetic structure of solar active region NOAA 11158Bulletin of the Astronomical Society of India , 41, 183.
  4. Sharma, Rahul, Srivastava, Nandita, Chakrabarty, D., Möstl, Christian, & Hu, Qiang, 2013, Interplanetary and geomagnetic consequences of 5 January 2005 CMEs associated with eruptive filamentsJournal of Geophysical Research (Space Physics) , 118, 3954.
  5. Mishra, Wageesh & Srivastava, Nandita, 2013, Estimating the Arrival Time of Earth-directed Coronal Mass Ejections at in Situ Spacecraft Using COR and HI Observations from STEREOThe Astrophysical Journal , 772, 70.
  6. Joshi, Bhuwan, Kushwaha, Upendra, Cho, K. -S., & Veronig, Astrid M., 2013, RHESSI and TRACE Observations of Multiple Flare Activity in AR 10656 and Associated Filament EruptionThe Astrophysical Journal , 771, 1.
  7. Louis, R. E., Mathew, S. K., Puschmann, K. G., Beck, C., & Balthasar, H., 2013, Formation of a penumbra in a decaying sunspotAstronomy and Astrophysics , 552, L7.
  8. Zuccarello, Francesca, Balmaceda, Laura, Cessateur, Gael, Cremades, Hebe, Guglielmino, Salvatore L., Lilensten, Jean, Dudok de Wit, Thierry, Kretzschmar, Matthieu, Lopez, Fernando M., Mierla, Marilena, Parenti, Susanna, Pomoell, Jens, Romano, Paolo, Rodriguez, Luciano, Srivastava, Nandita, Vainio, Rami, West, Matt, & Zuccarello, Francesco P., 2013, Solar activity and its evolution across the corona: recent advancesJournal of Space Weather and Space Climate , 3, A18.


  1. Vemareddy, P., Ambastha, A., Maurya, R. A., & Chae, J., 2012, On the Injection of Helicity by the Shearing Motion of Fluxes in Relation to Flares and Coronal Mass EjectionsThe Astrophysical Journal , 761, 86.
  2. Vemareddy, P., Ambastha, A., & Maurya, R. A., 2012, On the Role of Rotating Sunspots in the Activity of Solar Active Region NOAA 11158The Astrophysical Journal , 761, 60.
  3. Kilpua, E. K. J., Mierla, M., Rodriguez, L., Zhukov, A. N., Srivastava, N., & West, M. J., 2012, Estimating Travel Times of Coronal Mass Ejections to 1 AU Using Multi-spacecraft Coronagraph DataSolar Physics , 279, 477.
  4. Louis, Rohan E., Ravindra, B., Mathew, Shibu K., Bellot Rubio, Luis R., Raja Bayanna, A., & Venkatakrishnan, P., 2012, Analysis of a Fragmenting Sunspot Using Hinode ObservationsThe Astrophysical Journal , 755, 16.
  5. Louis, Rohan E., Mathew, Shibu K., Bellot Rubio, Luis R., Ichimoto, Kiyoshi, Ravindra, B., & Raja Bayanna, A., 2012, Properties of Umbral Dots from Stray Light Corrected Hinode FiltergramsThe Astrophysical Journal , 752, 109.
  6. Vemareddy, P., Maurya, R. A., & Ambastha, A., 2012, Filament Eruption in NOAA 11093 Leading to a Two-Ribbon M1.0 Class Flare and CMESolar Physics , 277, 337.
  7. Das, A. C. & Ambastha, Ashok, 2012, High Energy Emissions from Young Stellar ObjectsJournal of Astrophysics and Astronomy , 33, 1.
  8. Maurya, R. A., Vemareddy, P., & Ambastha, A., 2012, Velocity and Magnetic Transients Driven by the X2.2 White-light Flare of 2011 February 15 in NOAA 11158The Astrophysical Journal , 747, 134.
  9. Varma, R. K., Banerjee, S. B., & Ambastha, A., 2012, Macro-scale observation of curl-free vector potential: A manifestation of quantum modulation of the de Broglie waveEuropean Physical Journal D , 66, 38.
  10. Joshi, Bhuwan, Veronig, Astrid, Manoharan, P. K., & Somov, Boris V., 2012, Signatures of Magnetic Reconnection in Solar Eruptive Flares: A Multi-wavelength PerspectiveAstrophysics and Space Science Proceedings , 33, 29.
  11. Tiwari, Sanjiv Kumar, 2012, On the Force-free Nature of Photospheric Sunspot Magnetic Fields as Observed from Hinode (SOT/SP)The Astrophysical Journal , 744, 65.
  12. Sharma, Rahul & Srivastava, Nandita, 2012, Presence of solar filament plasma detected in interplanetary coronal mass ejections by in situ spacecraftJournal of Space Weather and Space Climate , 2, A10.


  1. Joshi, Bhuwan, Veronig, Astrid M., Lee, Jeongwoo, Bong, Su-Chan, Tiwari, Sanjiv Kumar, & Cho, Kyung-Suk, 2011, Pre-flare Activity and Magnetic Reconnection during the Evolutionary Stages of Energy Release in a Solar Eruptive FlareThe Astrophysical Journal , 743, 195.
  2. Kumar, Brajesh, Venkatakrishnan, P., Mathur, Savita, Tiwari, Sanjiv Kumar, & García, R. A., 2011, On the Flare-induced Seismicity in the Active Region NOAA 10930 and Related Enhancement of Global Waves in the SunThe Astrophysical Journal , 743, 29.
  3. Ravindra, B., Venkatakrishnan, P., Tiwari, Sanjiv Kumar, & Bhattacharyya, R., 2011, Evolution of Currents of Opposite Signs in the Flare-productive Solar Active Region NOAA 10930The Astrophysical Journal , 740, 19.
  4. Joshi, Anand D. & Srivastava, Nandita, 2011, Acceleration of Coronal Mass Ejections from Three-dimensional Reconstruction of STEREO ImagesThe Astrophysical Journal , 739, 8.
  5. Kumar, Dinesh & Bhattacharyya, R., 2011, Solar coronal loops as non force-free minimum energy relaxed statesPhysics of Plasmas , 18, 084506.
  6. Mierla, M., Inhester, B., Rodriguez, L., Gissot, S., Zhukov, A., & Srivastava, N., 2011, On 3D reconstruction of coronal mass ejections: II. Longitudinal and latitudinal width analysis of 31 August 2007 eventJournal of Atmospheric and Solar-Terrestrial Physics , 73, 1166.
  7. Panasenco, Olga, Martin, Sara, Joshi, Anand D., & Srivastava, Nandita, 2011, Rolling motion in erupting prominences observed by STEREOJournal of Atmospheric and Solar-Terrestrial Physics , 73, 1129.
  8. Srivastava, Nandita, Mierla, Marilena, & Rodriguez, Luciano, 2011, On three-dimensional aspects of CMEs, their source regions and interplanetary manifestations: Introduction to special issueJournal of Atmospheric and Solar-Terrestrial Physics , 73, 1077.
  9. Schmieder, B., Démoulin, P., Pariat, E., Török, T., Molodij, G., Mandrini, C. H., Dasso, S., Chandra, R., Uddin, W., Kumar, P., Manoharan, P. K., Venkatakrishnan, P., & Srivastava, N., 2011, Actors of the main activity in large complex centres during the 23 solar cycle maximumAdvances in Space Research , 47, 2081.
  10. Bayanna, A. Raja, Mathew, Shibu K., Sankarasubramanian, K., Venkatakrishnan, P., Singh, J., & Prasad, B. R., 2011, Issues with external occultation of a coronagraphExperimental Astronomy , 29, 145.
  11. Joshi, Anand D. & Srivastava, Nandita, 2011, Kinematics of Two Eruptive Prominences Observed by EUVI/STEREOThe Astrophysical Journal , 730, 104.
  12. Gosain, S., Mathew, S. K., & Venkatakrishnan, P., 2011, Acoustic Power Absorption and its Relation to Vector Magnetic Field of a SunspotSolar Physics , 268, 335.
  13. Louis, Rohan E., Bellot Rubio, Luis R., Mathew, Shibu K., & Venkatakrishnan, P., 2011, Supersonic Downflows at the Umbra-Penumbra Boundary of SunspotsThe Astrophysical Journal , 727, 49. 
  14. J. Singh, B. Raghavendra Prasad, P. Venkatakrishnan, K. Sankarasubramanian, D. Banerjee, A. R. Bayanna, S. K. Mathew et al., 2011, Proposed visible emission line space solar coronagraph, Current Science, 100, 167.


  1. Janardhan, P., Bisoi, Susanta K., & Gosain, S., 2010, Solar Polar Fields During Cycles 21 - 23: Correlation with Meridional FlowsSolar Physics , 267, 267.
  2. Bhattacharyya, R., Low, B. C., & Smolarkiewicz, P. K., 2010, On spontaneous formation of current sheets: Untwisted magnetic fieldsPhysics of Plasmas , 17, 112901.
  3. Tiwari, Sanjiv Kumar, Venkatakrishnan, P., & Gosain, Sanjay, 2010, Magnetic Non-potentiality of Solar Active Regions and Peak X-ray Flux of the Associated FlaresThe Astrophysical Journal , 721, 622.
  4. Gosain, Sanjay & Venkatakrishnan, P., 2010, The Evolution of the Twist Shear and Dip Shear During X-class Flare of 2006 December 13: Hinode ObservationsThe Astrophysical Journal , 720, L137.
  5. Gosain, Sanjay, Tiwari, Sanjiv Kumar, & Venkatakrishnan, P., 2010, On the Estimate of Magnetic Non-potentiality of Sunspots Derived Using Hinode SOT/SP Observations: Effect of Polarimetric NoiseThe Astrophysical Journal , 720, 1281.
  6. Venkatakrishnan, P. & Tiwari, Sanjiv Kumar, 2010, Magnetic tension of sunspot fine structuresAstronomy and Astrophysics , 516, L5.
  7. Maurya, R. A. & Ambastha, A., 2010, Sub-surface Meridional Flow, Vorticity, and the Lifetime of Solar Active RegionsThe Astrophysical Journal , 714, L196.
  8. Artzner, G., Gosain, S., & Schmieder, B., 2010, A Technique for Removing Background Features in SECCHI - EUVI He ii 304 Å Filtergrams: Application to the Filament Eruption of 22 May 2008Solar Physics , 262, 437.
  9. Joshi, A. D., Srivastava, N., & Mathew, S. K., 2010, Automated Detection of Filaments and Their Disappearance Using Full-Disc Hα ImagesSolar Physics , 262, 425.
  10. Maurya, R. A. & Ambastha, A., 2010, A Technique for Automated Determination of Flare Ribbon Separation and Energy ReleaseSolar Physics , 262, 337.
  11. Guo, Y., Schmieder, B., Bommier, V., & Gosain, S., 2010, Magnetic Field Structures in a Facular Region Observed by THEMIS and HinodeSolar Physics , 262, 35.
  12. Kumar, Brajesh, Mathur, Savita, García, R. A., & Venkatakrishnan, P., 2010, On the Flare Induced High-Frequency Global Waves in the SunThe Astrophysical Journal , 711, L12.
  13. A. D. Joshi, S. K. Mathew, N. Srivastava, S. F. Martin and S. K. Gupta, 2010, A dual beam H-alpha Doppler system to acquire, analyse and anticipate solar eruptive events directed towards EarthIndian J. Radio & Space Physics, 39, 315.
  14. Mierla, M., Inhester, B., Antunes, A., Boursier, Y., Byrne, J. P., Colaninno, R., Davila, J., de Koning, C. A., Gallagher, P. T., Gissot, S., Howard, R. A., Howard, T. A., Kramar, M., Lamy, P., Liewer, P. C., Maloney, S., Marqué, C., McAteer, R. T. J., Moran, T., Rodriguez, L., Srivastava, N., St. Cyr, O. C., Stenborg, G., Temmer, M., Thernisien, A., Vourlidas, A., West, M. J., Wood, B. E., & Zhukov, A. N., 2010, On the 3-D reconstruction of Coronal Mass Ejections using coronagraph dataAnnales Geophysicae, 28, 203.
  15. Gosain, S., & Schmieder, B., 2010, Estimation of width and inclination of a filament sheet using He II 304 Å observations by STEREO/EUVIAnnales Geophysicae, 28, 149.


  1. Gosain, S., Venkatakrishnan, P., & Tiwari, Sanjiv Kumar, 2009, HINODE Observations of Coherent Lateral Motion of Penumbral Filaments During an X-Class FlareThe Astrophysical Journal , 706, L240.
  2. Maurya, R. A., Ambastha, A., & Tripathy, S. C., 2009, Variations in p-Mode Parameters with Changing Onset Time of a Large FlareThe Astrophysical Journal , 706, L235.
  3. Joshi, Bhuwan, Veronig, Astrid, Cho, K. -S., Bong, S. -C., Somov, B. V., Moon, Y. -J., Lee, Jeongwoo, Manoharan, P. K., & Kim, Y. -H., 2009, Magnetic Reconnection During the Two-phase Evolution of a Solar Eruptive FlareThe Astrophysical Journal , 706, 1438.
  4. Venkatakrishnan, P. & Tiwari, Sanjiv Kumar, 2009, On the Absence of Photospheric Net Currents in Vector Magnetograms of Sunspots Obtained from Hinode (Solar Optical Telescope/Spectro-Polarimeter)The Astrophysical Journal , 706, L114.
  5. Srivastava, N., Inhester, B., Mierla, M., & Podlipnik, B., 2009, 3D Reconstruction of the Leading Edge of the 20 May 2007 Partial Halo CMESolar Physics , 259, 213.
  6. Gosain, S., Schmieder, B., Venkatakrishnan, P., Chandra, R., & Artzner, G., 2009, 3D Evolution of a Filament Disappearance Event Observed by STEREOSolar Physics , 259, 13.
  7. Louis, Rohan E., Bellot Rubio, Luis R., Mathew, Shibu K., & Venkatakrishnan, P., 2009, Supersonic Downflows in a Sunspot Light BridgeThe Astrophysical Journal , 704, L29.
  8. Cho, Kyung-Suk, Lee, Jeongwoo, Bong, Su-Chan, Kim, Yeon-Han, Joshi, Bhuwan, & Park, Young-Deuk, 2009, A Coronal Mass Ejection and Hard X-Ray Emissions Associated with the Kink InstabilityThe Astrophysical Journal , 703, 1.
  9. Tiwari, Sanjiv Kumar, Venkatakrishnan, P., & Sankarasubramanian, K., 2009, Global Twist of Sunspot Magnetic Fields Obtained from High-Resolution Vector MagnetogramsThe Astrophysical Journal , 702, L133.
  10. Maurya, R. A. & Ambastha, A., 2009, Transient Magnetic and Doppler Features Related to the White-Light Flares in NOAA 10486Solar Physics , 258, 31.
  11. Tiwari, Sanjiv Kumar, Venkatakrishnan, P., Gosain, Sanjay, & Joshi, Jayant, 2009, Effect of Polarimetric Noise on the Estimation of Twist and Magnetic Energy of Force-Free FieldsThe Astrophysical Journal , 700, 199.
  12. Mathew, S. K., Zakharov, V., & Solanki, S. K., 2009, Stray light correction and contrast analysis of Hinode broad-band imagesAstronomy and Astrophysics , 501, L19.
  13. Srivastava, Nandita, Mathew, Shibu K., Louis, Rohan E., & Wiegelmann, Thomas, 2009, Source region of the 18 November 2003 coronal mass ejection that led to the strongest magnetic storm of cycle 23Journal of Geophysical Research (Space Physics) , 114, A03107.


  1. Mierla, M., Davila, J., Thompson, W., Inhester, B., Srivastava, N., Kramar, M., St. Cyr, O. C., Stenborg, G., & Howard, R. A., 2008, A Quick Method for Estimating the Propagation Direction of Coronal Mass Ejections Using STEREO-COR1 ImagesSolar Physics , 252, 385.
  2. Louis, Rohan E., Bayanna, A. Raja, Mathew, Shibu K., & Venkatakrishnan, P., 2008, Dynamics of Sunspot Light Bridges as Revealed by High-Resolution Images from HinodeSolar Physics , 252, 43.
  3. Mathew, Shibu K., 2008, Enhanced p-Mode Absorption Seen Near the Sunspot Umbral Penumbral BoundarySolar Physics , 251, 515.
  4. Venkatakrishnan, P., Kumar, Brajesh, & Uddin, Wahab, 2008, Co-spatial evolution of photospheric Doppler enhancements and Hα flare ribbons observed during the solar flare of 2003 October 28Monthly Notices of the Royal Astronomical Society , 387, L69.
  5. Bayanna, A. R., Kumar, B., Louis, R. E., Venkatakrishnan, P., & Mathew, S. K., 2008, Development of a low-order Adaptive Optics system at Udaipur Solar ObservatoryJournal of Astrophysics and Astronomy , 29, 353.
  6. Maurya, Ram Ajor & Ambastha, Ashok, 2008, Hα intensity oscillations in large flaresJournal of Astrophysics and Astronomy , 29, 249.
  7. Gosain, Sanjay, Tiwari, Sanjiv, Joshi, Jayant, & Venkatakrishnan, P., 2008, Software for interactively visualizing solar vector magnetograms of udaipur solar observatoryJournal of Astrophysics and Astronomy , 29, 107.
  8. Maurya, Ram Ajor & Ambastha, Ashok, 2008, Magnetic and velocity field variations in the active regions NOAA 10486 and NOAA 10488Journal of Astrophysics and Astronomy , 29, 103.
  9. Ambastha, Ashok, 2008, Helioseismic effects of energetic transientsJournal of Astrophysics and Astronomy , 29, 93.


  1. Joshi, V. & Srivastava, N., 2007, On the study of kinematics of eruptive quiescent prominences observed in He 304 ÅBulletin of the Astronomical Society of India , 35, 447.
  2. Ambastha, A., 2007, Signatures of large flares on photospheric magnetic and velocity fieldsBulletin of the Astronomical Society of India , 35, 419.
  3. Ambastha, A., 2007, Evolution of Magnetic and Velocity Fields in Super-active Region NOAA10486 and the Large 4B/X17.2 Flare of October 28, 2003Sun and Geosphere , 2, 13.
  4. Kumar, Brajesh, Venkatakrishnan, P., Bayanna, A. Raja, & Venugopalan, K., 2007, Site Characterization Using Solar Hα ImagesSolar Physics , 241, 427.
  5. Mathew, S. K., Martínez Pillet, V., Solanki, S. K., & Krivova, N. A., 2007, Properties of sunspots in cycle 23. I. Dependence of brightness on sunspot size and cycle phaseAstronomy and Astrophysics , 465, 291.


  1. Kumar, Brajesh & Ravindra, B., 2006, Analysis of Enhanced Velocity Signals Observed during Solar FlaresJournal of Astrophysics and Astronomy , 27, 425.
  2. Ambastha, Ashok & Antia, H. M., 2006, Possibility of Excitation of Low-ℓ P-Modes by Energetic Solar TransientsSolar Physics , 238, 219.
  3. Gupta, Sudhir Kumar, Mathew, Shibu K., & Venkatakrishnan, P., 2006, Development of Solar ScintillometerJournal of Astrophysics and Astronomy , 27, 315.
  4. Gosain, Sanjay, Venkatakrishnan1, P., & Venugopalan, K., 2006, Design and Status of Solar Vector Magnetograph (SVM-I) at Udaipur Solar ObservatoryJournal of Astrophysics and Astronomy , 27, 285.
  5. Ambastha, Ashok, 2006, Photospheric, Chromospheric and Helioseismic Signatures of a Large Flare in Super-active Region NOAA 10486Journal of Astrophysics and Astronomy , 27, 255.
  6. Bhatnagar, Arvind, 2006, Why Study the Sun?Journal of Astrophysics and Astronomy , 27, 59.
  7. Srivastava, Nandita, 2006, The Challenge of Predicting the Occurrence of Intense StormsJournal of Astrophysics and Astronomy , 27, 237.
  8. Pick, M., Forbes, T. G., Mann, G., Cane, H. V., Chen, J., Ciaravella, A., Cremades, H., Howard, R. A., Hudson, H. S., Klassen, A., Klein, K. L., Lee, M. A., Linker, J. A., Maia, D., Mikic, Z., Raymond, J. C., Reiner, M. J., Simnett, G. M., Srivastava, N., Tripathi, D., Vainio, R., Vourlidas, A., Zhang, J., Zurbuchen, T. H., Sheeley, N. R., & Marqué, C., 2006, Multi-Wavelength Observations of CMEs and Associated Phenomena. Report of Working Group FSpace Science Reviews , 123, 341.
  9. Schwenn, R., Raymond, J. C., Alexander, D., Ciaravella, A., Gopalswamy, N., Howard, R., Hudson, H., Kaufmann, P., Klassen, A., Maia, D., Munoz-Martinez, G., Pick, M., Reiner, M., Srivastava, N., Tripathi, D., Vourlidas, A., Wang, Y. -M., & Zhang, J., 2006, Coronal Observations of CMEs. Report of Working Group ASpace Science Reviews , 123, 127.
  10. Ambastha, Ashok, Ravindra, B., & Gosain, Sanjay, 2006, Hα Observations of 8 June, 2004 Venus TransitSolar Physics , 233, 171.


  1. Srivastava, N., 2005, Predicting the occurrence of super-stormsAnnales Geophysicae , 23, 2989.
  2. Srivastava, N., 2005, A logistic regression model for predicting the occurrence of intense geomagnetic stormsAnnales Geophysicae , 23, 2969.
  3. Venkatakrishnan, P., Sridharan, R., & Gupta, S. K., 2005, Imaging with insolated mirrorsBulletin of the Astronomical Society of India , 33, 265.


  1. Ravindra, B., Venkatakrishnan, P., & Kumar, Brajesh, 2004, The Pattern of Moving Magnetic Inhomogeneities in and Around SunspotsSolar Physics , 225, 47.
  2. Srivastava, Nandita & Venkatakrishnan, P., 2004, Solar and interplanetary sources of major geomagnetic storms during 1996-2002Journal of Geophysical Research (Space Physics) , 109, A10103.
  3. Sridharan, R., Dashora, Nirvikar, & Venkatakrishnan, P., 2004, Estimation of Fried's Parameter from Long-Exposure Solar ImagesSolar Physics , 222, 35.
  4. Gosain, Sanjay, Venkatakrishnan, P., & Venugopalan, K., 2004, Design of Instrument Control Software for Solar Vector Magnetograph at Udaipur Solar ObservatoryExperimental Astronomy , 18, 31.


  1. Ambastha, Ashok, Basu, Sarbani, & Antia, H. M., 2003, Flare-Induced Excitation of Solar p modesSolar Physics , 218, 151.
  2. Venkatakrishnan, P. & Ravindra, B., 2003, Relationship between CME velocity and active region magnetic energyGeophysical Research Letters , 30, 2181.
  3. Gosain, Sanjay & Prasad Choudhary, Debi, 2003, Simultaneous Stokes-V diagnostic of a Sunspot using Mg b and Fe I linesSolar Physics , 217, 119.
  4. Ravindra, B. & Venkatakrishnan, P., 2003, Structure and Evolution of the Transition Region Network Observed in he ii λ304Solar Physics , 215, 239.
  5. Ravindra, B. & Venkatakrishnan, P., 2003, On the Correlation Between the he ii λ304 Network Brightening and the Photospheric Magnetic FieldSolar Physics , 214, 267.
  6. Choudhary, D. P. & Gosain, S., 2003, Study of bright points in the off-band Hα filtergrams of active regionsAstronomische Nachrichten , 324, 367.
  7. Choudhary, D. P. & Gosain, S., 2003, Magnetic and velocity fields of active regionsAstronomische Nachrichten , 324, 362
  8. Tripathy, S. C., 2003, Solar Cycle Variation in GONG and MDI Data : 1995-2002Bulletin of the Astronomical Society of India , 31, 153.