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HAZMAT. VIII. A Spectroscopic Analysis of the Ultraviolet Evolution of K Stars: Additional Evidence for K Dwarf Rotational Stalling in the First Gigayear
Tyler Richey-Yowell, Evgenya L. Shkolnik, R. O. Parke Loyd +7
Efforts to discover and characterize habitable zone planets have primarily focused on Sun-like stars and M dwarfs. K stars, however, provide an appealing compromise between these t…
Stellar flares from blended and neighbouring stars in Kepler short cadence observations
James A. G. Jackman, Evgenya Shkolnik, R. O. Parke Loyd
We present the results of a search for stellar flares from stars neighbouring the target sources in the Kepler short cadence data. These flares have been discarded as contaminants…
Lyman- Observations of High Radial Velocity Low-Mass Stars Ross 1044 and Ross 825
Adam C. Schneider, Evgenya L. Shkolnik, Travis S. Barman +1
The discovery of habitable zone (HZ) planets around low-mass stars has highlighted the need for a comprehensive understanding of the radiation environments in which such planets re…
A Hot Ultraviolet Flare on the M Dwarf Star GJ 674
C. S. Froning, A. Kowalski, K. France +10
As part of the Mega MUSCLES Hubble Space Telescope (HST) Treasury program, we obtained time-series ultraviolet spectroscopy of the M2.5V star, GJ~674. During the FUV monitoring obs…
HAZMAT. IV. Flares and Superflares on Young M Stars in the Far Ultraviolet
R. O. Parke Loyd, Evgenya L. Shkolnik, Adam C. Schneider +4
M stars are powerful emitters of far-ultraviolet light. Over long timescales, a significant, possibly dominant, fraction of this emission is produced by stellar flares. Characteriz…
The MUSCLES Treasury Survey. V. FUV Flares on Active and Inactive M Dwarfs
R. O. Parke Loyd, Kevin France, Allison Youngblood +10
M dwarf stars are known for their vigorous flaring. This flaring could impact the climate of orbiting planets, making it important to characterize M dwarf flares at the short wavel…