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Flares in Open Clusters with K2. I. M45 (Pleiades), M44 (Praesepe) and M67
Ekaterina Ilin, Sarah J. Schmidt, James R. A. Davenport +1
The presence and strength of a stellar magnetic field and activity is rooted in a star's fundamental parameters such as mass and age. Can flares serve as an accurate stellar "clock…
The Near-Ultraviolet Continuum Radiation in the Impulsive Phase of HF/GF-Type dMe Flares I: Data
Adam F. Kowalski, John P. Wisniewski, Suzanne L. Hawley +8
We present NUV flare spectra from the Hubble Space Telescope/Cosmic Origins Spectrograph during two moderate-amplitude U-band flares on the dM4e star GJ 1243. These spectra are som…
The largest M dwarfs flares from ASAS-SN
Sarah J. Schmidt, Benjamin J. Shappee, Jennifer L. van Saders +13
The All-Sky Automated Survey for Supernovae (ASAS-SN) is the only project in existence to scan the entire sky in optical light every day, reaching a depth of mag. O…
K2 Ultracool Dwarfs Survey. IV. Monster flares observed on the young brown dwarf CFHT-BD-Tau 4
Rishi R. Paudel, John E. Gizis, D. J. Mullan +4
We present photometric measurements of two superflares observed on a very young brown dwarf CFHT-BD-Tau 4, observed during Campaign 13 of the \textit{Kepler K2} mission. The strong…
K2 Ultracool Dwarfs Survey. III. White Light Flares are Ubiquitous in M6-L0 Dwarfs
Rishi R. Paudel, John E. Gizis, D. J. Mullan +4
We report the white light flare rates for 10 ultracool dwarfs (UCDs) using \textit{Kepler K2} short cadence data. Among our sample stars, two have spectral type M6, three are M7, t…