Radwan Tajeddine et al 2017 ApJS 232 28
The viscous spreading of Saturn’s A ring is found to be counteracted by the cumulative torques from the group of satellites Pan, Atlas, Prometheus, Pandora, Janus, Epimetheus, and Mimas.
Dylan Keating and Nicolas B. Cowan 2017 ApJL 849 L5
Re-analysis of WASP-43b eclipse data to include reflected light reveals a cooler dayside (1483 ± 10 K) and hotter nightside (1076 ± 11 K), reducing the problem of the large day–night contrast previously measured.
S. V. Berdyugina et al 2017 ApJ 847 61
The first direct detection is reported of a strong, 5 kG magnetic field on the surface of an active brown dwarf that exhibits transient radio and optical emission bursts modulated by fast rotation.
Steven S. Vogt et al 2017 AJ 154 181
An 18-year span of precision radial velocity measurements reveal the presence of a 6-planet system orbiting the G0V star HD 34445 with periods of 1057, 215, 118, 49, 677, and 5700 days.
Huan Yang et al 2017 ApJ 847 38
51 candidate “blueberry galaxies” are found — dwarf starburst galaxies with very small sizes (<1 kpc) and very high ionization, with some of the lowest stellar masses and metallicities of star-forming galaxies.
Davide Lazzati et al 2017 ApJL 848 L6
New numerical simulations of the prompt emission of short-duration gamma-ray bursts provide a model in which X-ray transients of a few to ~10 s arise, delayed by a few seconds from the time of the merger.