Nolan Matthews et al 2023 AJ 165 117
A test of intensity interferometry — correlating the changes in a star’s intensity as seen by multiple telescopes — shows how the system can be used on telescopes of different designs.
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.