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

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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. 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, P. Janardhan , Giulio Del Zanna, Helen E. Mason, Urmila Mitra-Kraev, and S. Narendranath. (2021). ApJ , 920, 4, DOI:10.3847/1538-4357/ac14c1

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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  [In Press] ,  DOI: 


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