William C. Keel et al 2023 AJ 165 166
A chance alignment of a background elliptical galaxy and a foreground face-on spiral galaxy gives researchers a unique chance to study the galaxy’s dust properties and distribution.
Stephanie M. LaMassa et al 2023 ApJ 944 152
New research has dredged up three examples of radio-loud, Compton-thick active galactic nuclei and suggests that we may need to revisit how we classify active galactic nuclei as Compton thick.
Kelly A. Douglass et al 2023 ApJS 265 7
Researchers have compiled new catalogs of cosmic voids — enormous regions of space that contain relatively few galaxies compared to extended filaments containing the bulk of the galaxies in our universe.
Eonho Chang et al 2023 ApJL 946 L1
Gas pressure maxima could cause dust rings in protoplanetary disks, but fluid instabilities should quickly disrupt these maxima; new work uses this fact to constrain the properties of dust-ring-inducing gas bumps.
Kelsey A. Lund et al 2023 ApJ 944 144
Calculations of the luminosity of kilonovae appear to be highly sensitive to the rates at which certain nuclear species split apart into more stable species by emitting an electron or positron.
Early observations from the Daniel K. Inouye Solar Telescope enabled the study of an umbral flash: a sudden brightening of the solar chromosphere, possibly due to shock waves, seen via its spectrum.