Xiaojing Lin et al 2023 ApJL 944 L59

Observations suggest that metals (elements heavier than helium) are amassed efficiently in low-mass galaxies in the early universe, leading to a low escape fraction for ionizing radiation.

Suprovo Ghosh et al 2023 ApJ 944 53

New modeling of oscillations in rotating neutron stars suggests a higher frequency range than previous estimates; these oscillations may produce gravitational waves and allow us to study neutron star interiors.

Ágnes Kóspál et al 2023 ApJL 945 L7

Emission lines in the spectrum of a pre-main-sequence star suggest that crystalline forsterite grains formed in a 2008 outburst have migrated outward into the disk, where they might be swept up into planets.

Caleb I. Cañas et al 2023 ApJS 265 50

Twenty-eight companions to stars observed with the Kepler spacecraft were studied in detail, allowing for the inflated radii of these brown dwarfs and M dwarfs to be determined.

Arnab Sarkar et al 2023 ApJ 944 132

Deep observations of the galaxy cluster Abell 98 reveal a variety of structures including a gas sloshing spiral, an X-ray tail, and cold front edges; some of these structures are indicative of ram-pressure stripping.

S. Estrada-Dorado et al 2023 ApJL 944 L46

New observations suggesting the accretion of planetary debris onto a white dwarf allow for a reassessment of previous data that were complicated by the presence of a bright source nearby.