Benson T. Guest et al 2022 AJ 164 231
X-ray observations of an extragalactic supernova remnant show that the remnant is expanding at a blistering 6,120 kilometers per second, which suggests that the surrounding interstellar medium is low density.
Cecilia Garraffo et al 2022 ApJL 941 L8
Using a newly available map of Proxima Centauri’s surface magnetic field, researchers recalculate the space weather conditions at the location of the habitable-zone planet Proxima Centauri b.
L. A. C. van Son et al 2022 ApJ 940 184
The apparent neutron star–black hole mass gap seen in gravitational wave observations can be explained by selection effects resulting from the properties of the stable mass transfer formation channel.
Chi Yan et al 2023 Planet. Sci. J. 4 11
Researchers use models to probe Mars’s ancient magnetic fields; as more and more heat is introduced beneath the planet’s crust, the magnetic dynamo can switch from stable to reversing.
Takashi Nagao et al 2022 ApJL 941 L4
Dust properties throughout the universe appear not to be universal; a study of dust in two galaxies 50–70 million light-years away shows that Milky Way–like and non-Milky Way–like dust are both present.
Christopher J. Conselice et al 2022 ApJ 940 168
Major galaxy mergers appear to add more stellar mass to galaxies between a redshift of 0 and a redshift of 3 than minor mergers do, and both types of mergers together tend to double a galaxy’s mass in this period.