C. Alig et al 2018 ApJL 869 L2
Hydrodynamical simulations of the Smith Cloud impact onto the gaseous Milky Way galactic disk suggest the possibility of an observable, highly localized starburst event in the far future.
Po-Feng Wu et al 2018 ApJ 868 37
The observed ages and sizes of a sample of quiescent galaxies suggests two evolutionary paths to quiescence: one with gradual shutdown of star formation, and one with rapid quenching and structural changes to the galaxy.
Lauren M. Weiss et al 2018 AJ 156 254
Analysis of Kepler planet candidates suggests that sub-Neptune-sized singles (sole detected transiting planets) and multis (planets in multi-transiting-planet systems) don’t differ in their stellar properties or planet radii.
A. Albert et al 2018 ApJL 868 L20
Ten years of ANTARES track and shower data and seven years of IceCube track data reveal no significant excess, providing new constraints on galactic cosmic-ray production and transport.
Benjamin F. Williams et al 2018 ApJS 239 13
A combination of deep new Chandra ACIS-I observations and extensive Hubble imaging from the Panchromatic Hubble Andromeda Treasury of the M31 disk reveals 373 X-ray sources, 170 of which are new discoveries.
Rachael M. Roettenbacher and Krisztián Vida 2018 ApJ 868 3
An analysis of a subset of Kepler stars suggests that the strongest stellar flares do not correlate to the largest starspot group present, but weaker flares do show an increased occurrence close to starspot groups.