103 citations · 548 across the 46 of their papers we have counts for
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Aditya-L1 and SDO Observations of a Confined X-Class Flare with an EUV Late Phase: Thermal and Nonthermal Emission, Magnetic Topology, and Flux Rope Confinement
Vishwa Vijay Singh, Bhuwan Joshi, N. P. S. Mithun
We study a long-duration, confined X2.0-class solar flare exhibiting three distinct episodes of HXR emission, along with an accompanying EUV late phase. A key highlight of this wor…
Cross-Calibration of Chandrayaan-2 XSM with INSPIRESat-1 DAXSS and GOES-16 XRS
N. P. S. Mithun, Santosh V. Vadawale, Asif M. Mandayapuram +9
X-ray spectroscopic observations of the solar corona and flares provide crucial diagnostics of plasma properties and are essential for understanding the physical processes responsi…
Multi-wavelength observations of a B-class flare using XSM, AIA, and XRT
Yamini K. Rao, B. Mondal, Giulio Del Zanna +5
We present multi-wavelength observations by Chandrayaan-2/XSM, SDO/AIA and Hinode/XRT of a B-class flare observed on 25th February, 2021, originating from an active region (AR 1280…
Role of small-scale impulsive events in heating the X-ray bright points of the quiet Sun
Biswajit Mondal, James A Klimchuk, Santosh V. Vadawale +6
Small-scale impulsive events, known as nanoflares, are thought to be one of the prime candidates that can keep the solar corona hot at its multi-million Kelvin temperature. Individ…
Evolution of elemental abundances in hot active region cores from Chandrayaan-2 XSM observations
Biswajit Mondal, Santosh V. Vadawale, Giulio Del Zanna +5
The First Ionization Potential (FIP) bias, whereby elemental abundances for low FIP elements in different coronal structures vary from their photospheric values and may also vary w…
Nanoflare Heating of the Solar Corona Observed in X-rays
Vishal Upendran, Durgesh Tripathi, N. P. S. Mithun +2
The existence of the million-degree corona above the cooler photosphere is an unsolved problem in astrophysics. Detailed study of quiescent corona that exists regardless of the pha…
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 +7
Spectroscopic observations in X-ray wavelengths provide excellent diagnostics of the temperature distribution in solar flare plasma. The Solar X-ray Monitor (XSM) onboard the Chand…
Multi-wavelength observations by XSM, Hinode and SDO of an active region. Chemical abundances and temperatures
G. Del Zanna, B. Mondal, Y. K. Rao +7
We have reviewed the first year of observations of the Solar X-ray Monitor (XSM) onboard Chandrayaan-2, and the available multi-wavelength observations to complement the XSM data,…
Radio, X-ray and extreme-ultraviolet observations of weak energy releases in the `quiet' Sun
R. Ramesh, C. Kathiravan, N. P. S. Mithun +1
We analyzed ground-based low frequency (100\,MHz) radio spectral and imaging data of the solar corona obtained with the facilities in the Gauribidanur observatory during the sam…
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 +6
The Solar X-ray Spectrometer (XSM) payload onboard Chandrayaan-2 provides disk-integrated solar spectra in the 1-15 keV energy range with an energy resolution of 180 eV (at 5.9 keV…
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. Vadawale, N. P. S. Mithun, Biswajit Mondal +12
Solar flares, with energies ranging over several orders of magnitude, result from impulsive release of energy due to magnetic reconnection in the corona. Barring a handful, almost…
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. Vadawale, Biswajit Mondal, N. P. S. Mithun +12
Elements with low First Ionization Potential (FIP) are known to be three to four times more abundant in active region loops of the solar corona than in the photosphere. There have…
Solar X-ray Monitor On Board the Chandrayaan-2 Orbiter: In-flight Performance and Science Prospects
N. P. S. Mithun, Santosh V. Vadawale, Aveek Sarkar +14
The Solar X-ray Monitor (abbreviated as XSM) on board India's Chandrayaan-2 mission is designed to carry out broadband spectroscopy of the Sun from lunar orbit. It observes the Sun…