Diana Scognamiglio et al 2020 ApJ 893 4
A new census of ultracompact massive galaxies (UCMGs) has discovered 19 new confirmed UCMGs at low and intermediate redshifts, contributing to the largest sample of UCMGs ever collected.
Kristopher Cooper et al 2020 ApJL 893 L40
NuSTAR and SDO/AIA have captured one of the weakest active region microflares — small releases of stored magnetic energy — ever studied, providing insight into the tiny flares thought to be ubiquitous phenomena.
Joseph R. Masiero et al 2020 Planet. Sci. J 1 9
From a population of known near-Earth objects (NEOs), a manual search of all-sky infrared NEOWISE data has identified observations of more than 200 of these NEOs not previously characterized.
L. G. Bouma et al 2020 ApJL 893 L29
The decreasing orbital period of the hot Jupiter WASP-4b is not due to tidal decay, but rather due to the acceleration of the WASP-4 system toward us along our line of sight, possibly caused by a wide companion.
Zachary D. Hartman and Sébastien Lépine 2020 ApJS 247 66
A catalog of 99,203 probable wide binary systems identified from Gaia data demonstrates that the distribution of projected physical separation for probable wide binaries is a simple exponential tail.
Stephen R. Kane et al 2020 AJ 159 176
Precision photometry of WASP-47 from the K2 mission adds WASP-47b and possibly also WASP-47e to the growing list of dark, short-period giant planets, setting us up to explore factors that contribute to low planetary albedos.