Michael Zevin et al 2017 ApJ 846 82
It is possible to constrain natal kick prescriptions and the relative fraction of systems originating from each black-hole formation channel with order ~100 confident detections, solely with chirp-mass measurements.
Xia Luo et al 2017 AJ 154 99
The unusual light curves of the binary star system V410 Aur can be explained by a totally eclipsing contact configuration and “flip-flops”, in which the dominant activity switches between opposite longitudes.
Arieh Königl et al 2017 ApJL 846 L13
Dynamically isolated, Earth-size planets with orbital periods of ~1 day could represent the remnant rocky cores of giant planets that arrived at the stellar vicinity on high-eccentricity orbits.
Maosheng Xiang et al 2017 ApJS 232 2
The large data set of galactic-disk stellar ages and masses from LAMOST suggest that the Milky Way’s thin disk became prominent 8–10 Gyr ago, while the thick disk formed earlier and was almost quenched 8 Gyr ago.
A. Cherenkov et al 2017 ApJ 846 31
Over the course of 1 Gyr, the mass lost by a hot Jupiter due to impacts of CMEs from the host star is comparable to the mass lost due to high-energy stellar irradiation.
Andrés E. Piatti 2017 ApJL 846 L10
A stellar density profile of 47 Tucanae out to ~5.5 times its tidal radius reveals that this globular cluster’s envelope is a halo-like, nearly constant low-density structure.