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.
Thomas Williams et al 2020 ApJ 892 134
Evaluation shows that the rocket-borne High-Resolution Coronal Imager (Hi-C) can resolve individual coronal strands as small as ~202 km, indicating resolving power greater than that of the Solar Dynamics Observatory’s AIA.
Guang-Wei Li 2020 ApJL 892 L26
The fastest rotating star in the Milky Way, runaway star LAMOST J040643.69+542347.8, has a projected rotational velocity of 540 km/s — roughly 100 km/s faster than the previous record holder.
Gianni Cataldi et al 2020 ApJ 892 99
ALMA observations reveal a very low mass of neutral carbon in the CO-rich debris disk around the star HD 32297, possibly suggesting the capture of carbon onto dust grains, followed by rapid CO re-formation and rerelease.
Tianjun Gan et al 2020 AJ 159 160
LHS 1815b is the first planet to be found in the galactic thick disk, providing an opportunity to learn about differences in formation efficiency and evolution for planetary systems between different galactic components.