Aaron Do et al 2018 ApJL 855 L10
An interstellar number density of ‘Oumuamua-like objects is calculated to be ~0.2 per cubic AU, a density that cannot be achieved without contributions from every star.
Gabriella E. Alvarez et al 2018 ApJ 858 44
New X-ray observations of the Abell 3391/Abell 3395 intercluster filament suggest that the filament emission is dominated by ICM gas tidally disrupted during an early stage merger between these two clusters.
C.-H. Kim et al 2018 ApJS 235 41
A comprehensive catalog of 623 galactic eclipsing binary systems with eccentric orbits is compiled from archived photometric data by various sky-survey projects and new photometric measurements.
Paul D. Feldman et al 2018 AJ 155 193
The unprecedented sensitivity of the Cosmic Origins Spectrograph in the far-ultraviolet was used to determine the carbon-monoxide production rate for four recent comets: Hartley 2, Garradd, ISON, and Lovejoy.
Kanak Saha and Bruce Elmegreen 2018 ApJ 858 24
Simulations show that while cold stellar disks around classical bulges rapidly form spiral structure and bars, galaxy models with compact classical bulges are able to prevent bar formation for at least 4 Gyr.
Charlotte A. Mason et al 2018 ApJL 857 L11
New simulations and modeling show that distant ultraviolet-bright galaxies located in overdensities have >2x higher transmission through the z ~ 7 intergalactic medium than typical field galaxies.