P. Vemareddy

Heliophysicist
Indian Institute of Astrophysics

Publications [ADSABS][Google Scholar]

    Y-2024
  1. Simulating the formation and eruption of flux rope by magneto-friction model driven by time-dependent electric fields
    P. Vemareddy, 2024, ApJ, 975(2), 251
  2. Magnetic evolution of active regions: formation and eruption of magnetic flux ropes
    P. Vemareddy, 2024, IAU proc. Rev., in press
  3. Data-driven simulations of magnetic field evolution in Active Region 11429: Magneto-friction method using PENCIL code
    P. Vemareddy, J. Warnecke, P. Bourdin, 2024, RAA, 24, 025007
  4. Filament eruption from active region 13283 leading to fast halo-CME and intense geomagnetic storm on 23 April 2023
    P. Vemareddy, 2024, ApJ, 961(1), 199
  5. Eruption of prominence initiated by loss of equilibrium: multi-point observations
    P. Vemareddy, and M. S. Ibrahim, 2024, MNRAS, 527(2), 1774
    Y-2023
  6. The Possible Cause of Most Intense Geomagnetic Superstorm of the 21st Century on 20 November 2003
    A. Raghav, Z. Shaik, P. Vemareddy, and et al., 2023, SoPh, 298, 64
    Y-2022
  7. Nature of helicity injection in non-erupting solar active regions
    P. Vemareddy, 2022, MNRAS, vol 516, pages 158-166
  8. Eruption of EUV Hot-Channel near Solar Limb and Associated Moving Type-IV Radio Burst
    P. Vemareddy, P. Démoulin, K.S. Raja, J. Zhang, N. Gopalswamy, N. Vasantharaju, 2022, ApJ, 927, 108
  9. Magnetic imprints of eruptive and non-eruptive solar flares as observed by Solar Dynamics Observatory
    N. Vasantharaju, P. Vemareddy, B. Ravindra, and V. H. Doddamani, 2022, ApJ, 927, 86
    Y-2021
  10. Magnetic Structure in Successively Erupting Active Regions: Comparison of Flare-Ribbons with QSLs
    P. Vemareddy, 2021, Front. Phys., volume 9, article number 749479
  11. Successive injection of opposite magnetic helicity: Evidence for active regions without CMEs
    P. Vemareddy, 2021, MNRAS, vol 507, pages 6037-6044
  12. Mid-term periodicities in solar radio emission corresponding to SSN during solar cycle 23
    M. Aroori, P. Vemareddy, P. Chowdhury, and G. Yellaiah, 2021, SoPh, 296, 43
    Y-2020
  13. A statistical study of low-frequency solar radio Type-III bursts
    M. Aroori, K. S. Raja, R. Ramesh, P. Vemareddy, C. Monstein, and G. Yellaiah, 2020, SoPh, 295, 153
  14. Recurring homologous solar eruptions in NOAA AR 11429
    S. K. Dhakal, J. Zhang, P. Vemareddy, and N. Karna, 2020, ApJ, 901(1), 40
  15. Effect of lower stratospheric temperature on the TOC trends during the ozone depletion and recovery periods
    S. S. Ningombam, P. Vemareddy, and H. J. Song, 2020, ATMOSRES, 232, 104686
    Y-2019
  16. Finding the critical decay index in solar prominence eruptions
    N. Vasantharaju, P. Vemareddy, B. Ravindra, and V. H. Doddamani, 2019, ApJ, 885(1), 89
  17. Degree of electric current neutralization and activity in solar active regions
    P. Vemareddy, 2019, MNRAS, 486, 4936-4946
  18. Formation and eruption of sigmoidal structure from a weak field region of NOAA 11942
    N. Vasantharaju, P. Vemareddy, B. Ravindra, and V. H. Doddamani, 2019, ApJ, 874, 182
  19. Very fast helicity injection leading to critically stable state and large eruptive activity in active region NOAA 12673
    P. Vemareddy, 2019, ApJ, 872, 182
    Y-2018
  20. The magnetic field geometry of small solar wind flux ropes inferred from their twist distribution
    W. Yu, C.J. Farrugia, L. Lugaz, A.B. Galvin, C. Mostl, K. Paulson, P. Vemareddy, 2018, SoPh, 293, 165
  21. MHD simulations of the X9.3 flare on 2017 September 6: Evolving Magnetic topology
    C. Jiang, P. Zou, X. Feng, Q. Hu, R. Liu, P. Vemareddy, & et al, 2018, ApJ, 869, 13
  22. The recent signs of total column ozone recovery over mid-latitudes: The effects of the Montreal Protocol mandate
    S. S. Ningombam, P. Vemareddy, and H. J. Song, 2018, JASTP, vol 178, pp. 32-46
  23. Statistical study of Magnetic Non-Potential Measures in Confined and Eruptive Flares
    N. Vasantharaju, P. Vemareddy, B. Ravindra, and V. H. Doddamani, 2018, ApJ, 860, 58
  24. Study of Three-Dimensional Magnetic Structure and the Successive Eruptive Nature of AR 12371
    P. Vemareddy, and P. Démoulin, 2018, ApJ, 857, 90
    Y-2017
  25. Contribution of field strength gradients to the net vertical current of Active Regions
    P. Vemareddy, 2017, ApJ, 851(1), 3
  26. Prominence eruption initiated by helical kink-instability of an embedded flux rope
    P. Vemareddy, N. Gopalswamy and B. Ravindra, 2017, ApJ, 850, 38
  27. Successive homologous CMEs driven by shearing and converging motions in solar AR NOAA 12371
    P. Vemareddy, 2017, ApJ, 845, 59
  28. Successive injection of opposite magnetic helicity in solar active region NOAA 11928
    P. Vemareddy and P. Démoulin, 2017, A&A, 597, A104
    Y-2016
  29. Sunspot Rotation as a Driver of Major Solar Eruptions in NOAA Active Region 12158
    P. Vemareddy, X. Cheng and B. Ravindra, 2016, ApJ, 829(1), 24
  30. Comparison of magnetic properties in a magnetic cloud and its solar source on April 11-14 2013
    P. Vemareddy, C. Mostl, T. Rollett, W. Mishra, C. Farrugia, and M. Leitner, 2016, ApJ, 828(1), 12
    Y-2015
  31. Dynamics of On-disk Plumes as Observed with the IRIS, the AIA, and the HMI
    V. Pant, L. Dolla, R. Mazumder, D. Banerjee, K. Prasad, S., P. Vemareddy, 2015, ApJ, 807 (1), 12
  32. A Full Study on the Sun-Earth Connection of an Earth-directed CME Magnetic Flux Rope
    P. Vemareddy and W. Mishra 2015, ApJ, 814, 59
  33. Investigation of Helicity and Energy Flux Transport in Three Emerging Solar Active Regions
    P. Vemareddy, 2015, ApJ, 806, 245
  34. Flux Emergence in the Solar Active Region NOAA 11158: The Evolution of Net Current
    P. Vemareddy, P. Venkatakrishnan, and S. Karthikreddy, 2015, RAA, 15, 1547
    Y-2014
  35. Initiation and Eruption Process of MFR from Solar AR NOAA 11719 to Earth-directed CME
    P. Vemareddy and J. Zhang, 2014, ApJ, 797, 80
  36. Quasi-Static 3D Magnetic Field Evolution in Solar AR NOAA 11166 Associated with an X1.5 Flare
    P. Vemareddy and T. Wiegelmann, 2014, ApJ, 792, 40
    Y-2013
  37. Magnetic Structure of Solar Active Region NOAA 11158
    P. Vemareddy, A. Ambastha, and T. Wiegelmann, 2013, Bull. Ast. Soc. Ind, 41
    Y-2012
  38. On the Role of Rotating Sunspots in the Activity of Solar Active Region NOAA 11158
    P. Vemareddy, A. Ambastha, R. A. Maurya, 2012, ApJ, 761, 60
  39. On the Injection of Helicity by Shearing Motion of Fluxes in Relation to Flares and CMEs
    P. Vemareddy, A. Ambastha, R. A. Maurya, and J. Chae, ApJ, 2012, 761, 86
  40. Velocity and Magnetic Transients Driven by the X2.2 WL Flare of 2011 February 15 in NOAA 11158
    R. A. Maurya, P. Vemareddy and, A. Ambastha, ApJ, 2012, 747, 134
  41. Filament Eruption in NOAA 11093 Leading to a Two-Ribbon M1 Class Flare and CME
    P. Vemareddy, R. A. Maurya and A. Ambastha, Solar Phys., 2012, 277, 337
    Y-2011
  42. Kinetic and Magnetic Helicities in Solar Active Regions
    R. A. Maurya, A. Ambastha, and Vema Reddy, 2011, J. Phys.: Conf. Ser., 271, pp.012003.