Janardhan Padmanabhan, FNA                                                                              
INSA Senior Scientist
Physical Research Laboratory
Ahmedabad - 380 009
INDIA

PRL-Logo





PRL Home
Site Navigation:



<ORT>

A view of the Ooty Radio Telescope (530x30 m) in the Nilgiri Hills in South India. The telescope is operated by NCRA, TIFR.

Click on the image for a full size B/W picture of the ORT.
 
 

<elec-button>  Recent Research Publications (Since  2021):


  1. Ground Calibration of Solar X-ray Monitor On Board the Chandrayaan-2 Orbiter
    N. P. S. Mithun, Santosh V. Vadawale, M. Shanmugam , Arpit R. Patel, Neeraj Kumar, Tiwari, Hiteshkumar L. Adalja, Shiv Kumar Goyal, Tinkal Ladiya, Nishant Singh, Sushil, Kumar, Manoj K. Tiwari, M. H. Modi, Biswajit Mondal, Aveek Sarkar, Bhuwan Joshi, P. Janardhan, Anil Bhardwaj. (2021). Expt. Astronomy 51, 33-60,DOI:10.1007/s10686-020-09686-5.

  2. Observations of the Quiet Sun During the Deepest Solar Minimum of the Past Century with Chandrayaan-2 XSM - Elemental Abundances in the Quiescent Corona
    Santosh V., Biswajit Mondal, N. P. S. Mithun, Aveek Sarkar, Janardhan, P., Bhuwan Joshi , Anil Bhardwaj, M. Shanmugam, Arpit R. Patel, Hitesh Kumar L. Adalja, Shiv Kumar Goyal , Tinkal Ladiya, Neeraj Kumar Tiwari, Nishant Singh, and Sushil Kumar. (2021).   ApJ. Lett., 912., L12, DOI:10.3847/2041-8213/abf35d.

  3. Observations of the Quiet Sun During the Deepest Solar Minimum of the Past Century with Chandrayaan-2 XSM - Sub-A Class Microflares Outside Active Regions
    Santosh V., N. P. S. Mithun, Biswajit Mondal, Aveek Sarkar, Janardhan, P., Bhuwan Joshi, Anil Bhardwaj, M. Shanmugam, Arpit R. Patel, Hitesh Kumar L. Adalja, Shiv Kumar Goyal, Tinkal Ladiya, Neeraj Kumar Tiwari, Nishant Singh, and Sushil Kumar. (2021). ApJ. Lett., 912, L13, DOI:10.3847/2041-8213/abf0b0.

  4. Evolution of Elemental Abundances During B-Class Solar Flares: Soft X-ray Spectral Measurements with Chandrayaan-2 XSM
    Biswajit Mondal, Aveek Sarkar, Santosh V. Vadawale, N. P. S. Mithun, Janardhan, P ., Giulio Del Zanna, Helen E. Mason, Urmila Mitra-Kraev, and Shyama Narendranath K C (2021). ApJ., 920, 4, DOI:10.3847/1538-4357/ac14c1

  5. Multiwavelength Observations by XSM, Hinode, and SDO of an Active Region. Chemical Abundances and Temperatures
    G. Del Zanna, B. Mondal, Y. K. Rao, N. P. S. Mithun, S. V. Vadawale, K. K. Reeves, H. E. Mason, A. Sarkar, P. Janardhan , and A. Bhardwaj. (2022). ApJ, 934, 159, DOI:10.3847/1538-4357/ac7a9a

  6. Shock Induced Transformation of Non-Magnetic to Magnetic ISM Dust Analogue
    Arijit Roy, V. S. Surendra, J. K. Meka, R. Ramachandran, D. Sahu, A. Goutam, T. Vijay, V. Jayaram, P. Janardhan , B. N. Rajasekhar, Anil Bhardwaj, N. J. Mason, and B. Sivaraman. (2022). MNRAS, 517, 4845 – 4855, DOI:10.1093/mnras/stac2637

  7. Shock Processing of Amorphous Carbon Nanodust
    Arijit Roy, V.S. Surendra, M. Ambresh, D. Sahu, J.K. Meka, R. Ramachandran, P. Samarth, S. Pavithraa, V. Jayaram, H. Hill, J. Cami, B.N. Rajasekhar, P. Janardhan , Anil Bhardwaj, N.J. Mason, B. Sivaraman. (2022). JASR, 16047, DOI:10.1016/j.asr.2022.06.068

  8. Soft X-ray Spectral Diagnostics of Multi-thermal Plasma in Solar Flares with Chandrayaan-2 XSM
    N. P. S. Mithun, Santosh V. Vadawale, Giulio Del Zanna, Yamini K. Rao, Bhuwan Joshi, Aveek Sarkar, Biswajit Mondal, P. Janardhan , Anil Bhardwaj, and Helen E. Mason. (2022). ApJ ., 939, 112, DOI:10.3847/1538-4357/ac98b4

  9. N-Graphene Synthesized in Astrochemical Ices
    Shivaraman B, Rahul K K, Ambresh M, Sahu D, Meka J K, Chou S-L, Wu Y-J, Gupta D, Das A, Lo J-I, Cheng B-M, Raja Sekhar B N, Bhardwaj A, Hill H, Janardhan P , and, Mason N J (2023). European Physical Journal-D , 77,24, DOI:10.1140/epjd/s10053-023-00590-z

  10. Evolution of elemental abundances in hot active region cores from Chandrayaan-2 XSM observations
    Biswajit Mondal, Santosh V. Vadawale, Giulio Del Zanna, N. P. S. Mithun, Aveek Sarkar, Helen E. Mason, Janardhan, P ., and Anil Bhardwaj (2023). ApJ., 920, DOI:10.3847/1538-4357/ac14c1

  11. The Origin of Extremely Non-radial Solarwind Outflows
    Diptiranjan Rout, Janardhan P ., Fujiki, K., Chakrabarty, D., and Bisoi, S. K. (2023). ApJ, 950, DOI:10.3847/1538-4357/acd000

  12. Ultraviolet spectrum reveals the presence of ozone on Juipeter's moon Callisto
    R Ramachandran, J K Meka, K K Rahul, W Khan, J-I Lo, B-M Cheng, D V Mifsud, B N Rajasekhar, A Das, H Hill, Janardhan, P ., Anil Bhardwaj, N J Mason, B Sivaraman (2024). Icarus 410,  DOI: 10.1016/j.icarus.2023.115896

  13. Amorphous 1-Propanol Interstellar Ice Beyond its Melting Point
    Ramachandran, R., Hazarika, A., Gupta, S., Nag, S., Meka, J. K., Tejender S. Thakur, Yashonath, S., Vishwakarma, G., Chou, S. -L., Wu, Y. -J., Janardhan, P ., Rajasekhar, B. N., Anil Bhardwaj, Mason, N. J., Sivaraman, B., (2024).  MNRAS , 530(1),1027–1034.  DOI:,  https://doi.org/10.1093/mnras/stae759

  14. Prolonged and Extremely Non-radial Solar Wind Flows
    Bisoi,S.K., Rout, D.,Janardhan P., Ken’ichi Fujiki, Chakrabarty, D., and Sahu, K. (2024). Bull. Roy. Soc. Liege, 93(2), 1004--1017.  DOI: 10.25518/0037-9565.11946

  15. Experimental and computational study of ethanolamine ices at astrochemical conditions
    R Ramachandran, Milan Sil, Prasanta Gorai, J K Meka, S Pavithraa, J -I Lo, -L Chou, Y -J Wu, P Janardhan, B -M Cheng, Anil Bhardwaj, V´ıctor M. Rivilla, N J Mason, B Sivaraman, and Ankan Das. (2024). ApJ,  [In Press]

  16. Aditya Solar wind Particle Experiment (ASPEX) onboard Aditya–L1: The Solarwind Ion Spectrometer (SWIS)
    Prashant Kumar, Bhas Bapat, Manan S. Shah, Hiteshkumar L. Adalja, Arpit R. Patel, Pranav R. Adhyaru, Shanmugam M., Dibyendu Chakrabarty, Swaroop B. Banerjee, K. P. Subramanian, Aveek Sarkar, Tinkal Ladiya, Jacob Sebastian, Abhishek Kumar, Sushil Kumar, Nishant Singh, M. B. Dadhania, Santosh V. Vadawale, Shiv Kumar Goyal, Neeraj Kumar Tiwari, P Janardhan, Anil Bhardwaj (2025). Sol. Phys., 300,37.  DOI:,  https://doi.org/10.1007/s11207-025-02443-x

  17. Aditya Solar wind Particle Experiment (ASPEX) onboard Aditya–L1: The Supra-Thermal and Energetic Particle Spectrometer (STEPS)
    Shiv Kumar Goyal, Neeraj Kumar Tiwari, Arpit R. Patel, Shanmugam M., Santosh V. Vadawale, Dibyendu Chakrabarty, Jacob Sebastian, Bijoy Dalal, Piyush Sharma, Aveek Sarkar, Aaditya Sarda, Tinkal Ladiya, Abhishek J. Verma, Nishant Singh, Sushil Kumar, Deepak Kumar Painkra, Prashant Kumar, Manan S. Shah, Pranav R. Adhyaru, Hiteshkumar L. Adalja, Swaroop B. Banerjee, K. P. Subramanian, Bhas Bapat, M. B. Dadhania, Abhishek Kumar, P Janardhan, Anil Bhardwaj (2025). Sol. Phys., 300, ,35.  DOI:,  https://doi.org/10.1007/s11207-025-02441-z

  18. Infrared spectroscopy reveals ethylene glycol is an anti crystallizer in water-mixed astrochemical ices
    Wafikul Khan, R Ramachandran, S Gupta, J K Meka, V Venkataraman, H Hill, B N Rajasekhar,     P Janardhan,     Anil Bhardwaj, N J Mason, and, B Sivaraman (2025) LSSR, , , .  DOI:,  https://doi.org/10.1016/j.lssr.2025.01.006  [In Press]

  19. Instantaneous formation of interstellar minerals and mineral quantum dots
    Arijit Roy, Surendra V. Singh, R. Ramachandrana, J. K. Meka, M. Ambresh, T. Vijay P Janardhan, V. Jayaram, V. Venkatraman, A. Das, H. Hill, Anil Bhardwaj, N. J. Mason, and, B. Sivaraman (2025) RSC Advances, , , .  DOI:,  https://doi.org/  [In Press]

  20. Energetic (< 2 MeV) Ion Environment of the Magnetosphere: Insights into External and Internal Drivers from ASPEX-STEPS Data onboard Aditya-L1
    Dibyendu Chakrabarty, Bijoy Dalal, Santosh Vadawale, Aveek Sarkar, Shiv Kumar Goyal, Jacob Sebastian, Anil Bhardwaj, P. Janardhan, M. Shanmugam, Neeraj Kumar Tiwari, Aaditya Sarda, Piyush Sharma, Aakash Gupta, Prashant Kumar, Bhas Bapat, Pranav R Adhyaru, Arpit R. Patel, Hitesh Kumar Adalja, Abhishek Kumar, Tinkal Ladiya, Sushil Kumar, Nishant Singh, Deepak Kumar Painkra, Abhishek J. Verma, Swaroop Banerjee, K. P. Subramanian, and M. B. Dadhania (2025). ApJL,  [Submitted]


Back to top