Steve Bryson et al 2021 AJ 161 36

Using the Kepler DR25 planet candidate catalog and Gaia-based stellar properties, the occurrence rate of habitable-zone rocky planets around main sequence stars is estimated as ~0.37–0.88 planets per star.

Roman R. Rafikov 2020 ApJL 905 L35

Calculations show that several of the S stars that orbit extremely close to the supermassive black hole at our galaxy’s center experience relativistic Doppler boosting that increases their photometric variability by more than 6%.

Yongmin Yoon and Gu Lim 2020 ApJ 905 154

An investigation of tidal features in 650 early-type galaxies (ETGs) provides evidence that compact young ETGs — especially those with blue cores — and ETGs with dust lanes are involved in recent mergers.

Yin-Bi Li et al 2021 ApJS 252 3

Nearly 600 high-velocity star candidates are selected from over 10 million spectra of Data Release 7 of the Large Sky Area Multi-object Fiber Spectroscopic Telescope and the second Gaia data release.

A. Albert et al 2020 ApJ 905 76

A new catalog of TeV gamma-ray sources using 1,523 days of data from the High-Altitude Water Cherenkov Observatory represents the most sensitive survey of the northern gamma-ray sky at energies above several TeV.

Kevin B. Burdge et al 2020 ApJL 905 L7

Newly discovered ZTF J2243+5242 is only the second known eclipsing double white dwarf binary with an orbital period of less than 10 minutes. The binary, which will merge in ~400,000 yr, should be detectable by LISA.