Benjamin E. Nelson et al 2017 AJ 154 106
Do hot Jupiters migrate inwards gently via slow disk interactions, or violently via tidal circularization of high-eccentricity orbits? Data from HAT and WASP suggest that both mechanisms may occur.
Wageesh Mishra et al 2017 ApJS 232 5
The properties are explored of 8 cases of interacting coronal mass ejections observed in the heliosphere, including their propagation and expansion speeds and the direction of impact and masses.
David Berardo and Andrew Cumming 2017 ApJL 846 L17
Gas-giant planets that form via a hot-start model (in which runaway accretion forms a hot shock on the surface of the planet) are shown to develop a radiative rather than a convective interior.
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.