A Catalog of M-dwarf Flares with ASAS-SN
Romy Rodr\'iguez Mart\'inez, Laura A. Lopez, Benjamin J. Shappee,, Sarah J. Schmidt, Tharindu Jayasinghe, Christopher S. Kochanek, Katie, Auchettl, Thomas W.-S. Holoien

TL;DR
This study analyzed 1376 nearby M dwarfs using ASAS-SN data, identifying 62 flares and revealing correlations between flaring activity, spectral type, rotation, and H-alpha emission.
Contribution
It provides a comprehensive catalog of M-dwarf flares from ASAS-SN data and explores their relation to stellar properties, including rotation and emission features.
Findings
Flares observed on 62 stars with energies up to 6.9×10^{35} erg.
Flaring fraction increases with spectral type.
Flaring stars tend to have shorter rotation periods and stronger H-alpha emission.
Abstract
We analyzed the light curves of 1376 early-to-late, nearby M dwarfs to search for white-light flares using photometry from the All-Sky Automated Survey for Supernovae (ASAS-SN). We identified 480 M dwarfs with at least one potential flare employing a simple statistical algorithm that searches for sudden increases in -band flux. After more detailed evaluation, we identified 62 individual flares on 62 stars. The event amplitudes range from mag. Using classical-flare models, we place lower limits on the flare energies and obtain -band energies spanning erg. The fraction of flaring stars increases with spectral type, and most flaring stars show moderate to strong H emission. Additionally, we find that 14 of the 62 flaring stars are rotational variables, and they have shorter rotation periods…
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