Yi Ren et al 2021 ApJ 907 18
An attempt to establish a complete sample of red supergiants in galaxies M31 and M33 has resulted in a catalog of 5,498 and 3,055 red supergiants in the two galaxies, respectively.
D. Tanoglidis et al 2021 ApJS 252 18
23,790 extended low-surface-brightness galaxies identified in ~5,000 sq. deg from the first 3 years of Dark Energy Survey imaging can be used to test the role of environment in faint galaxy formation and evolution.
Edward M. Molter et al 2021 Planet. Sci. J. 2 3
ALMA and VLA spatial maps of the Uranian atmosphere taken between 2015 and 2018 reveal zonal radio-dark and radio-bright bands at 20°S, 0°, and 20°N, as well as zonal banding within the north polar region.
Anshu Kumari et al 2021 ApJ 906 79
A statistical study of 446 type IV radio bursts during solar cycle 24 shows that ~81% of type IV bursts were associated with a coronal mass ejection (CME), but only ~2.2% of CMEs were accompanied by type IV radio bursts.
Paola Re Fiorentin et al 2021 ApJL 907 L16
Clustering analysis of stars in the local volume of the Milky Way classifies 163 objects into eight kinematical groups, including a new 44-member stream, Icarus: the fast-rotating stream closest to the galactic disk to date.
Jean-Luc Margot et al 2021 AJ 161 55
A search for technosignatures focused on regions surrounding 31 Sun-like stars near the plane of the galaxy revealed ~26 million signals, of which 99.84% are classified as radio frequency interference.