S. Mathur et al 2018 ApJ 866 123
The quasar Mrk 590 appears to again be changing its appearance, indicating that the change in AGN type is neither due to obscuration nor due to one-way evolution; it may instead be related to episodic accretion events.
Joseph L. Hora et al 2018 ApJS 238 22
Light curves, periods, and amplitudes are presented for a subset of 38 near-Earth objects observed at 4.5 μm with the IRAC camera on the the Spitzer Space Telescope.
Travis A. Berger et al 2018 ApJ 866 99
Revised radii of 177,911 Kepler stars and their planets are calculated from Gaia DR2 data; ~67% of all Kepler targets are found to be main-sequence stars, ~21% subgiants, and ~12% red giants.
Elisabeth R. Newton et al 2018 AJ 156 217
Long-term, ground-based photometric monitoring from the MEarth Observatory is used to measure 234 rotation periods for nearby, southern hemisphere M dwarfs, including exoplanet hosts like Proxima Centauri.
Valeria Korol et al 2018 ApJL 866 L20
Between a dozen to several tens of double white dwarf binaries should be above the nominal detection threshold for LISA in neighboring galaxies within the Local Group, for a mission duration between 4 and 10 years.
T. S. Li et al 2018 ApJ 866 22
A spectroscopic study of the tidal tails and core of the Milky Way satellite Tucana III reveal a spread in metallicity, suggesting that the satellite is likely a dwarf galaxy rather than a star cluster.