23 citations · 70 across the 15 of their papers we have counts for
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A giant magnetic eruption from the asymptotic giant branch star Mira A
W. Vlemmings, M. Andriantsaralaza, B. Bojnordi Arbab +14
Mass loss during the advanced evolutionary stages of low- and intermediate-mass stars is traditionally attributed to dust-driven winds, whereas the influence of magnetic fields rem…
Exploring Activity Across the Stellar Main Sequence with the Sun as a Benchmark
Atul Mohan, Stephen M. White, Sven Wedemeyer +1
The active atmospheres of cool main-sequence stars (F-M type) often release a fraction of their stored magnetic energy, producing enhanced emissions (flares) across radio to X-ray…
The unique capabilities of HST for stellar physics: Probing Atmospheric Structure, Chromospheres, and Mass Loss of Evolved Stars
Maryam Saberi, Graham Harper, Jacco Th. van Loon +10
Evolved stars are among the primary sources of chemical enrichment and dust production in galaxies. During the giant phases, stars return a substantial fraction of their mass to th…
Young M dwarfs flare activity model: Towards better exoplanetary atmospheric characterisation
E. Mamonova, A. F. Kowalski, K. Herbst +2
Context. Stellar flares can significantly influence the atmospheres and habitability of orbiting exoplanets, especially around young and active M dwarfs. Understanding the temporal…
Fine details in solar flare ribbons: Statistical insights from observations with the Swedish 1-m Solar Telescope
Jonas Thoen Faber, Reetika Joshi, Luc Rouppe van der Voort +4
Flare ribbons serve as chromospheric footprints of energy deposition resulting from particle acceleration during magnetic reconnection. Their fine-scale structure provides a valuab…
Role of non-thermal processes in the quiescent and active millimeter spectrum of a young M dwarf
Atul Mohan, Peter H. Hauschildt, Birgit Fuhrmeister +3
Millimeter (mm) emission from F - M dwarfs (cool stars) primarily traces chromospheric activity, with thermal emission thought to dominate in quiescence. Despite the high chromosph…
High-resolution observational analysis of flare ribbon fine structures
Jonas Thoen Faber, Reetika Joshi, Luc Rouppe van der Voort +4
Context. Since the mechanism of energy release from solar flares is still not fully understood, the study of fine-scale features developing during flares becomes important for prog…
EMISSA: Exploring millimetre indicators of solar-stellar activity III. Comparison of Ca II indices and millimetre continua in a 3D model atmosphere
Sneha Pandit, Sven Wedemeyer, Mats Carlsson
The Ca II H & K lines are strong chromospheric diagnostics that can be used to determine the temperature stratification and magnetic structure of the solar atmosphere. The Atacama…
Energetic particle activity in AD Leo: Detection of a solar-like type-IV burst
Atul Mohan, Surajit Mondal, Sven Wedemeyer +1
AD Leo is a young and active M dwarf with high flaring rates across the X-ray to radio bands. Flares accelerate particles in the outer coronal layers and often impact exospace weat…
Comparison of chromospheric diagnostics in a 3D model atmosphere: H linewidth and mm continua
Sneha Pandit, Sven Wedemeyer, Mats Carlsson +1
The Ha line, one of the most studied chromospheric diagnostics, is a tracer for magnetic field structures, while its line core intensity provides an estimate of the mass density. T…
EMISSA -- Exploring Millimetre Indicators of Solar-Stellar Activity II. Towards a robust indicator of stellar activity
Atul Mohan, Sven Wedemeyer, Peter H. Hauschildt +2
An activity indicator, which can provide a robust quantitative mapping between the stellar activity and the physical properties of its atmosphere, is important in exploring the phy…
First detection of AlF line emission towards M-type AGB stars
M. Saberi, T. Khouri, L. Velilla-Prieto +3
The nucleosynthesis production of fluorine (F) is still a matter of debate. Asymptotic giant branch (AGB) stars are one of the main candidates for F production. However, their cont…
EMISSA -- Exploring Millimeter Indicators of Solar-Stellar Activity I. The Initial mm-cm Main Sequence Star Sample
Atul Mohan, Sven Wedemeyer, Sneha Pandit +2
Due to their wide wavelength coverage across the millimetre to centimetre (mm - cm) range and their increased sensitivity, modern interferometric arrays facilitate observations of…