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FUMES III: Ultraviolet and Optical Variability of M Dwarf Chromospheres
Girish M. Duvvuri, J. Sebastian Pineda, Zachory K. Berta-Thompson +2
We obtained ultraviolet and optical spectra for 9 M~dwarfs across a range of rotation periods to determine whether they showed stochastic intrinsic variability distinguishable from…
A Pilot Survey of an M Dwarf Flare Star with Swift's UV Grism
Shashank Chavali, Allison Youngblood, Rishi R. Paudel +5
The near-ultraviolet (NUV) spectral region is a useful diagnostic for stellar flare physics and assessing the energy environment of young exoplanets, especially as relates to prebi…
Intrinsic Lyman alpha Profiles of High-Velocity G, K, and M Dwarfs
Allison Youngblood, J. Sebastian Pineda, Thomas Ayres +5
Observations of H I Lyman alpha, the brightest UV emission line of late-type stars, are critical for understanding stellar chromospheres and transition regions, modeling photochemi…