Stellar flares

AF Kowalski - Living Reviews in Solar Physics, 2024 - Springer
Magnetic storms on stars manifest as remarkable, randomly occurring changes of the
luminosity over durations that are tiny in comparison to the normal evolution of stars. These …

Science with a small two-band UV-photometry mission II: Observations of stars and stellar systems

J Krtička, J Benáček, J Budaj, D Korčáková, A Pál… - Space Science …, 2024 - Springer
We outline the impact of a small two-band UV-photometry satellite mission on the field of
stellar physics, magnetospheres of stars, binaries, stellar clusters, interstellar matter, and …

Persistence of flare-driven atmospheric chemistry on rocky habitable zone worlds

H Chen, Z Zhan, A Youngblood, ET Wolf… - Nature …, 2021 - nature.com
Low-mass stars show evidence of vigorous magnetic activity in the form of large flares and
coronal mass ejections. Such space weather events may have important ramifications for the …

The high-energy radiation environment around a 10 Gyr M Dwarf: habitable at last?

K France, G Duvvuri, H Egan, T Koskinen… - The Astronomical …, 2020 - iopscience.iop.org
Recent work has demonstrated that high levels of X-ray and UV activity on young M dwarfs
may drive rapid atmospheric escape on temperate, terrestrial planets orbiting within the …

EvryFlare. III. Temperature evolution and habitability impacts of dozens of superflares observed simultaneously by evryscope and TESS

WS Howard, H Corbett, NM Law… - The Astrophysical …, 2020 - iopscience.iop.org
Superflares may provide the dominant source of biologically relevant UV radiation to rocky
habitable-zone M-dwarf planets (M-Earths), altering planetary atmospheres and conditions …

Extending optical flare models to the UV: results from comparing of TESS and GALEX flare observations for M Dwarfs

JAG Jackman, EL Shkolnik, C Million… - Monthly Notices of …, 2023 - academic.oup.com
The ultraviolet (UV) emission of stellar flares may have a pivotal role in the habitability of
rocky exoplanets around low-mass stars. Previous studies have used white-light …

Effects of UV stellar spectral uncertainty on the chemistry of terrestrial atmospheres

DJ Teal, EMR Kempton, S Bastelberger… - The Astrophysical …, 2022 - iopscience.iop.org
The upcoming deployment of the James Webb Space Telescope will dramatically advance
our ability to characterize exoplanet atmospheres, both in terms of precision and sensitivity …

Flares in open clusters with K2-II. Pleiades, Hyades, Praesepe, Ruprecht 147, and M 67

E Ilin, SJ Schmidt, K Poppenhäger… - Astronomy & …, 2021 - aanda.org
Context. Magnetic fields are a key component in the main sequence evolution of low mass
stars. Flares, energetic eruptions on the surfaces of stars, are an unmistakable manifestation …

Constraints on stellar flare energy ratios in the NUV and optical from a multiwavelength study of GALEX and Kepler flare stars

CE Brasseur, RA Osten, II Tristan… - The Astrophysical …, 2023 - iopscience.iop.org
We present a multiwavelength study of stellar flares on primarily G-type stars using
overlapping time domain surveys in the near-ultraviolet (NUV) and optical regimes. The …

The relative emission from chromospheres and coronae: dependence on spectral type and age

JL Linsky, BE Wood, A Youngblood… - The Astrophysical …, 2020 - iopscience.iop.org
Extreme-ultraviolet and X-ray emission from stellar coronae drives mass loss from exoplanet
atmospheres, and ultraviolet emission from stellar chromospheres drives photochemistry in …