Corpus ID: 198897297

# EvryFlare II: Rotation Periods and Starspot Coverage of Cool Active Stars Throughout the Spin-down Process

@article{Howard2019EvryFlareIR,
title={EvryFlare II: Rotation Periods and Starspot Coverage of Cool Active Stars Throughout the Spin-down Process},
author={Ward S. Howard and Hank Corbett and Nicholas M. Law and Jeffrey K. Ratzloff and Amy L. Glazier and Octavi Fors and Daniel del Ser and Joshua B. Haislip},
journal={arXiv: Solar and Stellar Astrophysics},
year={2019}
}
We measure photometric rotation periods and starspot amplitudes in Evryscope light curves for 113 cool stars selected to have strong flaring. The Evryscope array of small telescopes has observed all bright nearby stars in the Southern sky, producing two minute cadence light curves since 2016. Long-term, high-cadence observations allow detection of rare flare events and long-term periodic variability, and provide tools to probe the complex relationship between stellar rotation, starspots, and… Expand

#### Paper Mentions

Superflares and variability in solar-type stars with TESS in the Southern hemisphere
• Physics
• Monthly Notices of the Royal Astronomical Society
• 2020
Superflares on solar-type stars have been a rapidly developing field ever since the launch of Kepler. Over the years, there have been several studies investigating the statistics of these explosiveExpand
Evryscope-South Survey of Upper- and Pre-main Sequence Solar Neighborhood Stars
Using photometric data collected by Evryscope-South, we search for nearby young variable systems on the upper main sequence and pre-main sequence. The Evryscopes are all-sky high-cadence telescopeExpand
K2 Ultracool Dwarfs Survey – VI. White light superflares observed on an L5 dwarf and flare rates of L dwarfs
Kepler K2 long cadence data are used to study white light flares in a sample of 45 L dwarfs. We identified 11 flares on 9 L dwarfs with equivalent durations of (1.3 - 198) hr and totalExpand

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