Luminous red novae are estimated to contribute roughly 25% as much dust as core-collapse supernovae do, and the lower expansion velocities of luminous red novae may result in less dust destruction by shocks.
Using JWST’s exceptionally fine resolution, astronomers have ruled out the presence of multiple lensed images of J0025–0145 and estimated an intrinsic Eddington ratio of 4.9 for the quasar.
New spectroscopic evidence suggests that the globular cluster NGC 6569 is actively losing stars through tidal stripping; these stars will become part of the galactic bulge field population.
The star HD 166620 is experiencing a magnetic activity lull similar to the Sun’s Maunder minimum; its Lyman-alpha surface flux is about a factor of two lower than fluxes observed during solar minimum.
Fang-Bin Meng et al 2026 ApJS 283 20
Examining four binary systems in which the masses of the binary members are nearly equal, researchers find that the binary components show significant differences in magnetic activity and evolutionary stage.
Using numerical simulations, researchers show the viability of a formation pathway for Deimos that involves a catastrophic fragmentation and subsequent reaccretion into a dynamically cold orbit.