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.
Xiangyun Long et al 2023 ApJ 950 76
Observations of a pulsar during a giant outburst suggest that a low X-ray polarization fraction could be typical for all accreting pulsars, not just those in a sub-critical state.
J. Larsson et al 2023 ApJL 949 L27
JWST has provided the first observations of SN 1987A in the 1–5 micron range; these observations show that the reverse shock may have started to interact with the innermost ejecta.