283 citations · 926 across the 18 of their papers we have counts for
6 papers · 1 filter
Eclipsing binaries in the open cluster Ruprecht 147. II: EPIC 219568666
Guillermo Torres, Andrew Vanderburg, Jason L. Curtis +7
We report our spectroscopic monitoring of the detached, grazing, and slightly eccentric 12-day double-lined eclipsing binary EPIC 219568666 in the old nearby open cluster Ruprecht…
Towards precise stellar ages: combining isochrone fitting with empirical gyrochronology
Ruth Angus, Timothy D. Morton, Daniel Foreman-Mackey +7
We present a new age-dating technique that combines gyrochronology with isochrone fitting to infer ages for FGKM main-sequence and subgiant field stars. Gyrochronology and isochron…
Stellar Properties of Active G and K Stars: Exploring the Connection Between Starspots and Chromospheric Activity
Brett M. Morris, Jason L. Curtis, Charli Sakari +2
We gathered high resolution spectra for an ensemble of 55 bright active and inactive stars using the ARC 3.5 m Telescope Echelle Spectrograph at Apache Point Observatory ($R\approx…
TESS reveals that the nearby Pisces-Eridanus stellar stream is only 120 Myr old
Jason Lee Curtis, Marcel A. Agüeros, Eric E. Mamajek +2
Pisces-Eridanus (Psc-Eri), a nearby ( 80-226 pc) stellar stream stretching across 120 degrees of the sky, was recently discovered with Gaia data. The stream wa…
A Temporary Epoch of Stalled Spin-Down for Low-Mass Stars: Insights from NGC 6811 with Gaia and Kepler
Jason Lee Curtis, Marcel A. Agüeros, Stephanie T. Douglas +1
Stellar rotation was proposed as a potential age diagnostic that is precise, simple, and applicable to a broad range of low-mass stars (1 ). Unfortunately, rotation…
K2 rotation periods for low-mass Hyads and a quantitative comparison of the distribution of slow rotators in the Hyades and Praesepe
S. T. Douglas, J. L. Curtis, M. A. Agüeros +4
We analyze K2 light curves for 132 low-mass (~) members of the 600--800~Myr-old Hyades cluster and measure rotation periods ()…