Apurba Bera et al 2022 ApJL 940 L10
Galaxies with large reservoirs of neutral hydrogen gas were relatively uncommon four billion years ago compared to now, which suggests that massive galaxies today have gained gas through mergers and accretion.
Carrie Filion et al 2022 ApJ 939 38
The stellar initial mass function — in other words, the mass distribution of stars formed from a single gas cloud — for the Boötes I ultra-faint dwarf galaxy is consistent with that of the Milky Way.
Patrick O’Brien and Shane Byrne 2022 Planet. Sci. J. 3 258
Researchers have created the first map of double shadows on the Moon: regions permanently shielded from sunlight as well as scattered light, creating cold traps that could harbor carbon dioxide ice.
Caeley V. Pittman et al 2022 AJ 164 201
Modeling of nine low-mass stars in the Orion star-forming complex suggests relatively high accretion rates, and the rates calculated from near-ultraviolet data are higher than those calculated from optical data.
Yi-Yun Huang et al 2022 ApJL 940 L36
Researchers rule out the possibility that GRB 220627A is a gravitationally lensed gamma-ray burst, instead favoring the scenario in which it is intrinsically long, lasting more than 1,000 seconds.
J. E. Forero-Romero and D. Sierra-Porta 2022 ApJ 939 16
Estimates of the mass of the Local Group of galaxies based on the simulated movement of the Milky Way and Andromeda galaxies must account for the effect of the size of the simulation on the derived quantities.