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Browsing by Author "Pant, V"

Browsing by Author "Pant, V"

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  • Association of calcium network brightness with polar magnetic fields 
    Narang, Nancy; Chandrashekhar, K; Pant, V; Banerjee, D (Cambridge University Press, 2018-02)
    Recent dedicated HINODE polar region campaign revealed the presence of concentrated kilogauss patches of magnetic field in the polar regions of Sun which are also shown to be correlated with facular bright points at the ...
  • Automated Detection of Accelerating Solar Eruptions Using Parabolic Hough Transform 
    Ritesh Patel; Pant, V; Priyanka Iyer; Banerjee, D; Mierla, M; West, M. J (Springer, 2021-02)
    Solar eruptions such as coronal mass ejections (CMEs) observed in the inner solar corona (up to 4 R⊙) show acceleration profiles that appear as parabolic ridges in height–time plots. Inspired by the white-light automated ...
  • Automated Detection of Coronal Mass Ejections in Stereo Heliospheric Imager Data 
    Pant, V; Willems, S; Rodriguez, L; Mierla, M; Banerjee, D; Davies, J. A (IOP Publishing, 2016-12-10)
    We present deep Very Large Array imaging of 3C 273 in order to determine the diffuse, large scale radio structure of this famous radio-loud quasar. Diffuse extended structure (radio lobes) is detected for the first time ...
  • Automated detection of coronal mass ejections in visible emission line coronagraph (VELC) on-board ADITYA-L1 
    Ritesh Patel; Amareswari, K; Pant, V; Banerjee, D; Sankarasubramanian, K (Cambridge University Press, 2018-02)
    An onboard automated coronal mass ejections (CMEs) detection algorithm has been developed for Visible Emission Line Coronagraph (VELC) onboard ADITYA-L1. The aim of this algorithm is to reduce the load on telemetry by ...
  • Characterizing Spectral Channels of Visible Emission Line Coronagraph of Aditya-L1 
    Ritesh Patel; Megha, A; Shrivastav, Arpit Kumar; Pant, V; Vishnu, M; Sankarasubramanian, K; Banerjee, D (Frontiers, 2021-06)
    Aditya-L1 is India’s first solar mission with the Visible Emission Line Coronagraph (VELC), which consists of three spectral channels taking high-resolution spectroscopic observations of the inner corona up to 1.5 Rʘ at ...
  • Connecting 3D Evolution of Coronal Mass Ejections to Their Source Regions 
    Majumdar, S; Pant, V; Ritesh Patel; Banerjee, D (IOP Publishing, 2020-08-10)
    Since coronal mass ejections (CMEs) are the major drivers of space weather, it is crucial to study their evolution starting from the inner corona. In this work we use graduated cylindrical shell model to study the 3D ...
  • Dynamics of coronal transients as seen from space observations 
    Pant, V (Indian Institute of Astrophysics, 2017-10)
    The thesis is focused on the study of the coronal transients at different spatial and tem- poral scales seen in different layers of the solar atmosphere using space-based imaging and spectroscopic instruments. The first ...
  • Dynamics of on-disk plumes as observed with the interface region imaging spectrograph, the atmospheric imaging assembly, and the helioseismic and magnetic imager 
    Pant, V; Dolla, L; Mazumder, R; Banerjee, D; Krishna Prasad, S; Vemareddy, P (IOP Publishing, 2015-07-01)
    We examine the role of small-scale transients in the formation and evolution of solar coronal plumes. We study the dynamics of plume footpoints seen in the vicinity of a coronal hole using the Atmospheric Imaging Assembly ...
  • The Effects of Transients on Photospheric and Chromospheric Power Distributions 
    Mandal, Sudip; Yuan, D; Fang, Xia; Banerjee, D; Pant, V; Van Doorsselaere, T (IOP Publishing, 2016-09-10)
    Slow MHD waves are important tools for understanding coronal structures and dynamics. In this paper, we report a number of observations from the X-Ray Telescope (XRT) on board HINODE and Solar Dynamic Observatory/Atmospheric ...
  • The effects of transients on photospheric and chromospheric power distributions 
    Samanta, T; Henriques, V. M. J; Banerjee, D; Krishna Prasad, S; Mathioudakis, M; Jess, D; Pant, V (IOP Publishing, 2016-09-01)
    We have observed a quiet-Sun region with the Swedish 1 m Solar Telescope equipped with the CRISP Imaging SpectroPolarimeter. High-resolution, high-cadence, Hα line scanning images were taken to observe different layers of ...
  • Evolution of the thermodynamic properties of a coronal mass ejection in the inner Corona 
    Sheoran, Jyoti; Pant, V; Ritesh Patel; Banerjee, D (Frontiers, 2023-02)
    The thermodynamic evolution of Coronal Mass Ejections (CMEs) in the inner corona (≤1.5 Rsun) is not yet completely understood. In this work, we study the evolution of thermodynamic properties of a CME core observed in the ...
  • First Imaging Observation of Standing Slow Wave in Coronal Fan Loops 
    Pant, V; Tiwari, A; Yuan, D; Banerjee, D (IOP Publishing, 2017-09)
    We observe intensity oscillations along coronal fan loops associated with the active region AR 11428. The intensity oscillations were triggered by blast waves that were generated due to X-class flares in the distant ...
  • Flows and waves in braided solar coronal magnetic structures 
    Pant, V; Datta, A; Banerjee, D (IOP Publishing, 2015-03-01)
    We study the high frequency dynamics in the braided magnetic structure of an active region (AR 11520) moss as observed by the High-Resolution Coronal Imager (Hi-C). We detect quasi-periodic flows and waves in these structures. ...
  • Hi-C 2.1 Observations of Reconnection Nanojets 
    Patel, Ritesh; Pant, V (American Astronomical Society, 2022-10-20)
    One of the possible mechanisms for heating the solar atmosphere is the magnetic reconnection occurring at different spatiotemporal scales. The discovery of fast bursty nanojets due to reconnection in the coronal loops has ...
  • High-Frequency Dynamics of Active Region Moss as Observed by IRIS 
    Narang, Nancy; Pant, V; Banerjee, D; Doorsselaere, Tom Van (Frontiers, 2019-05-16)
    The high temporal, spatial and spectral resolution of Interface Region Imaging Spectrograph (IRIS) has provided new insights into the understanding of different small-scale processes occurring at the chromospheric and ...
  • The inner coronagraph on board ADITYA-L1 and automatic detection of CMEs 
    Banerjee, D; Ritesh Patel; Pant, V; ADITYA Team (International Astronomical Union, 2017-07)
    Visible Emission Line Coronagraph (VELC) on board ADITYA-L1 is an internally occulted coronagraph with mirror as its primary objective element. It has a field of view (FOV) starting from 1.05 R –3R. It will observe the ...
  • An Insight into the coupling of CME kinematics in inner and outer corona and the imprint of source regions 
    Majumdar, Satabdwa; Ritesh Patel; Pant, V; Banerjee, D (IOP Publishing, 2021-10-01)
    Despite studying coronal mass ejections (CMEs) for several years, we do not yet have a complete understanding of their kinematics. To this end, it is essential to understand the change in kinematics of the CMEs as they ...
  • Investigating Width Distribution of Slow and Fast CMEs in Solar Cycles 23 and 24 
    Pant, V; Majumdar, S; Patel, R; Chauhan, A; Banerjee, D; Gopalswamy, N (Frontiers, 2021-05)
    Coronal Mass Ejections (CMEs) are highly dynamic events originating in the solar atmosphere, that show a wide range of kinematic properties and are the major drivers of the space weather. The angular width of the CMEs ...
  • Magnetohydrodynamic waves in open coronal structures 
    Banerjee, D; Krishna Prasad, S; Pant, V; McLaughlin, J. A; Antolin, P; Magyar, N; Ofman, L; Tian, H; Van Doorsselaere, T; De Moorte, I; Wang, T. J (Springer Nature B.V, 2021-10)
    Modern observatories have revealed the ubiquitous presence of magnetohydrodynamic waves in the solar corona. The propagating waves (in contrast to the standing waves) are usually originated in the lower solar atmosphere ...
  • MHD Seismology of a loop-like filament tube by observed kink waves 
    Pant, V; Srivastava, A. K; Banerjee, D; Goossens, M; Chen, P.-F; Joshi, N. C; Zhou, Y.-H (IOP Publishing, 2015-10)
    We report and analyze observational evidence of global kink oscillations in a solar filament as observed in Hα by instruments administered by National Solar Observatory (NSO)/Global Oscillation Network Group (GONG). An ...

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