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 …

The archetypical flare star UV Cet was observed by MeerKAT on 2021 October 5–6. A large
radio outburst with a duration of∼ 2 hr was observed between 886 and 1682 MHz, with a …

M-dwarfs are common stellar hosts of habitable-zone exoplanets. Near-UV (NUV) radiation
can severely impact the atmospheric and surface conditions of such planets, making the …

We present a new method to distinguish between different states (eg high and low,
quiescent and flaring) in astronomical sources with count data. The method models the …

White-light stellar flares are now reported by the thousands in long-baseline, high-precision,
broad-band photometry from missions like Kepler, K2, and TESS. These observations are …

We identify 182 flares on 158 stars within 100 pc of the Sun in both the near-ultraviolet
(NUV; Å) and far-ultraviolet (FUV; Å) using high-cadence light curves from the Galaxy …

Flares from M dwarf stars can attain energies up to 10 4 times larger than solar flares but are
generally thought to result from similar processes of magnetic energy release and particle …

Stellar white-light flares are believed to play an essential role in the physical and chemical
properties of the atmosphere of the surrounding exoplanets. Here we report an optical …

Ultraviolet flare emission can drive photochemistry in exoplanet atmospheres and even
serve as the primary source of uncertainty in atmospheric retrievals. Additionally, flare …

Although flares from late-type main-sequence stars have been frequently detected in the
multiwavelength, the associated dynamical process has been rarely reported so far. Here …