Irina S. Proshina et al 2019 AJ 158 5
Observations of abundances in five lenticular galaxies with UV-bright, star-forming outer rings suggest that the gas of the rings was recently accreted, igniting a burst of star formation.
Fabo Feng et al 2019 ApJS 242 25
An automated detection method is used to analyze radial-velocity data from the Planet Finder Spectrograph, revealing 15 planet candidates located in 14 stellar systems and demonstrating the feasibility of this approach.
M. Ajello et al 2019 ApJ 878 52
The second catalog of gamma-ray bursts detected with Fermi’s Large Area Telescope is released, covering the first 10 years of operations and including 186 gamma-ray bursts.
Valentin Christiaens et al 2019 ApJL 877 L33
Observations with the Very Large Telescope have revealed evidence for a circumplanetary disk surrounding the protoplanet PDS 70 b (even as ALMA observations have recently indicated a similar disk around PDS 70 c).
Joshua Tollefson et al 2019 AJ 157 251
ALMA’s spatially resolved millimeter maps of Neptune provide important constraints on the atmospheric structure and dynamics of the planet, revealing details like unaccounted-for complex structure at the equator.
Alexander H. Riley et al 2019 ApJ 878 8
New data from the Fermi Large Area Telescope suggest that the debris-disk-hosting main-sequence star ε Eridani may be a source of gamma rays — the only main-sequence source of gamma-rays known besides the Sun.