Inverse-Compton emission from radio lobes might be responsible for the X-ray emission seen in three active galactic nuclei classified as compact symmetric objects.
Hubble Space Telescope observations reveal a three-zone disk, polar dust lanes that might point to a past minor merger, and dust pillars that may indicate large-scale feedback.
Steven L. Finkelstein et al 2024 ApJL 969 L2
Eighty-eight candidate high-redshift galaxies — 13 of which have now been spectroscopically confirmed — show that the number density of these UV-bright galaxies didn’t change much from z ~ 14 to z ~ 9.
Transient surveys are discovering increasingly complex supernovae; one such example transitioned from being Type IIb–like to resembling a stripped-envelope supernova during a dramatic second peak.
Tyrone N. O’Doherty et al 2024 AJ 168 44
New research suggests that astronomers should proceed carefully with identifying black holes via ellipsoidal variations; a closer look at a black hole candidate revealed a likely contact binary instead.
The existence of Martian “tadpole craters” with rims broken by outflowing liquid but no inflowing liquid may imply the past presence of hundreds of meters of surface ice, modeling suggests.