Andrew W. Boyle and Luke G. Bouma 2023 AJ 166 14
Stellar rotation rates are unreliable indicators of stellar age for stars more massive than 0.8 solar mass until they are about 86 million years old, suggests a recent study.
Guoqing Zhen et al 2023 ApJ 950 110
Using models to investigate X-ray bursts from accreting neutron stars, researchers find that different models yield significantly different burst durations and rise times.
Yu Jiang et al 2023 ApJS 267 32
A new method for detecting molecular clumps — dense areas of molecular clouds that are the sites of star formation — performs well on simulated and observational data.
Adam Smercina et al 2023 ApJL 949 L37
The “Evil Eye” Galaxy, Messier 64, has an unusual outer gas disk that rotates in the opposite direction from the galaxy’s stars; new data show that the galaxy is nearing the end of a merger.
Isabella L. Trierweiler et al 2023 Planet. Sci. J. 4 136
By studying the compositions of white dwarf stars that have consumed planets that once orbited them, researchers have shown that these planets are consistent with containing chondritic material.
Tiger Yu-Yang Hsiao et al 2023 ApJL 949 L34
New JWST observations of a bright galaxy originally discovered with the Hubble Space Telescope reveal it to instead be two galaxies, possibly providing evidence for a merger 430 million years after the Big Bang.