302 citations · 2.6k across the 41 of their papers we have counts for
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High Resolution Near-Infrared Spectroscopy of Cool Dwarf Stars
Andrea Dupree, Nancy Brickhouse, Jonathan Irwin +2
We present results from a near infrared survey of the He I line (10830 Angstrom) in cool dwarf stars taken with the PHOENIX spectrograph at the 4-m Mayall telescope at Kitt Peak Na…
An increased rate of large flares at intermediate rotation periods for mid-to-late M dwarfs
Nicholas Mondrik, Elisabeth Newton, David Charbonneau. Jonathan Irwin
We present an analysis of flares in mid-to-late M dwarfs in the MEarth photometric survey. We search 3985155 observations across 2226 stars, and detect 54 large () f…
TESS Discovery of an ultra-short-period planet around the nearby M dwarf LHS 3844
Roland Vanderspek, Chelsea X. Huang, Andrew Vanderburg +45
Data from the newly-commissioned \textit{Transiting Exoplanet Survey Satellite} (TESS) has revealed a "hot Earth" around LHS 3844, an M dwarf located 15 pc away. The planet has a r…
Four new eclipsing mid M-dwarf systems from the New Luyten Two Tenths catalog
Jonathan M. Irwin, David Charbonneau, Gilbert A. Esquerdo +7
Using data from the MEarth-North and MEarth-South transit surveys, we present the detection of eclipses in four mid M-dwarf systems: LP 107-25, LP 261-75, LP 796-24, and LP 991-15.…
A second terrestrial planet orbiting the nearby M dwarf LHS 1140
Kristo Ment, Jason A. Dittmann, Nicola Astudillo-Defru +27
LHS 1140 is a nearby mid-M dwarf known to host a temperate rocky super-Earth (LHS 1140 b) on a 24.737-day orbit. Based on photometric observations by MEarth and Spitzer as well as…
New rotation period measurements for M dwarfs in the southern hemisphere: an abundance of slowly rotating, fully convective stars
Elisabeth R. Newton, Nicholas Mondrik, Jonathan Irwin +2
Stellar rotation periods are valuable both for constraining models of angular momentum loss and for under- standing how magnetic features impact inferences of exoplanet parameters.…