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In this Day and Age: An Empirical Gyrochronology Relation for Partially and Fully Convective Single Field Stars
Yuxi Lu, Ruth Angus, Daniel Foreman-Mackey +1
Gyrochronology, the field of age-dating stars using mainly their rotation periods and masses, is ideal for inferring the ages of individual main-sequence stars. However, due to the…
An abrupt change in the stellar spin-down law at the fully convective boundary
Yuxi Lu, Victor See, Louis Amard +2
The importance of the existence of a radiative core in generating a solar-like magnetic dynamo is still unclear. Analytic models and magnetohydrodynamic simulations of stars sugges…
Flaring Latitudes in Ensembles of Low Mass Stars
Ekaterina Ilin, Ruth Angus, Rodrigo Luger +2
The distribution of small-scale magnetic fields in stellar photospheres is an important ingredient in our understanding of the magnetism of low mass stars. Their spatial distributi…
Bridging the gap -- the disappearance of the intermediate period gap for fully convective stars, uncovered by new ZTF rotation periods
Yuxi Lu, Jason L. Curtis, Ruth Angus +2
The intermediate period gap, discovered by Kepler, is an observed dearth of stellar rotation periods in the temperature-period diagram at 20 days for G dwarfs and up to $\si…
wdwarfdate: A Python Package to Derive Bayesian Ages of White Dwarfs
Rocio Kiman, Siyi Xu, Jacqueline K. Faherty +5
White dwarfs have been successfully used as cosmochronometers in the literature, however their reach has been limited in comparison to their potential. We present wdwarfdate, a pub…
Further Evidence of Modified Spin-down in Sun-like Stars: Pileups in the Temperature-Period Distribution
Trevor J. David, Ruth Angus, Jason L. Curtis +5
We combine stellar surface rotation periods determined from NASA's Kepler mission with spectroscopic temperatures to demonstrate the existence of pileups at the long-period and sho…