Modeling suggests that the observed gaps in the stellar sequence of open clusters are the result of small-number statistics and other factors, not evidence of the radiative–convective boundary.
The disks surrounding accreting black holes are dense enough for plasma physics effects to be important; new research shows that disks can produce strong iron emission, potentially explaining certain observations.
A new catalog uses deep Hubble Space Telescope data of four Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS) fields to provide redshift estimates and physical properties for more than 150,000 galaxies.
A supernova at a distance of 163 light-years from a planetary system can eject half of all objects less than 1 cm; nearer supernovae can remove objects up to 100 meters in size.
A wide-reaching meta-analysis of coronal magnetic field models finds that all of models studied fail to reproduce the boundaries of coronal holes seen in extreme-ultraviolet images.
An analysis of X-ray data from the Chandra X-ray Observatory suggests that “little red dot” galaxies do harbor active galactic nuclei, though the properties of these objects differ from other active galactic nuclei.