activity
20242026
collaborators

13 papers

astro-ph.SR2026

Multi-Wavelength Diagnostics of Pre-Flare Evolution with Aditya-L1: From the Solar Chromosphere to the Corona

Adithya H. N., Sreejith Padinhatteeri, Soumya Roy +13

The pre-flare phase of solar flares provides important insight into the processes that drive active regions toward instability. We investigate chromospheric pre-flare activity usin…

astro-ph.SR2026

The Sunrise Chromospheric Infrared Spectro-Polarimeter SCIP: an instrument for SUNRISE III

Y. Katsukawa, J. C. del Toro Iniesta, S. K. Solanki +54

The Sunrise balloon-borne solar observatory is equipped with a one-meter aperture optical telescope, offering a unique platform for uninterrupted seeing-free observations across ul…

astro-ph.SR2026

Self-consistent numerical simulations for the formation and dynamics of solar prominences

Lisa-Marie Zessner, Robert H. Cameron, Sami K. Solanki +1

Solar prominences are cool and dense plasma structures floating in the hot solar corona. They are ubiquitous features in the solar atmosphere, but their formation mechanism is stil…

astro-ph.SR2026

Unraveling the Secrets of the lower Solar Atmosphere: One year of Operation of the Solar Ultraviolet Imaging Telescope (SUIT) on board Aditya-L1

Rahul Gopalakrishnan, Soumya Roy, Deepak Kathait +20

The Solar Ultraviolet Imaging Telescope (SUIT) is an instrument onboard Aditya--L1, the first solar space observatory of the Indian Space Research Organization (ISRO), India, launc…

astro-ph.SR2026

Molecular hydrogen controls the temperatures of flares on TRAPPIST-1

Alexander I. Shapiro Nadiia Kostogryz Sara Seager Veronika Witzke Julien de Wit Valeriy Vasilyev Astrid M. Veronig Robert Cameron Hardi Peter Sami K. Solanki

Early JWST observations of TRAPPIST-1 have revealed an unexpected puzzle: energetic white-light flares ( erg) reach temperatures of only 3500--4000\,K, ne…

astro-ph.EP2025

Flares on TRAPPIST-1 reveal the spectrum of magnetic features on its surface

Valeriy Vasilyev, Nadiia Kostogryz, Alexander I. Shapiro +11

TRAPPIST-1 is an M8 dwarf hosting seven known exoplanets and is currently one of the most frequently observed targets of the James Webb Space Telescope (JWST). However, it is notor…