Collisions between stars can produce transient signals similar in brightness to supernovae; new analytic and hydrodynamic modeling examines the properties of these events.
Measurements of galactic half-light radii at different wavelengths, combined with an investigation of simulated galaxies, suggest that dust rather than inside-out growth is responsible for observed trends.
A first-of-its kind numerical analysis demonstrates that radio and X-ray precursor emission is generated by Alfvén waves in the magnetosphere of a neutron star in a close binary system.
An analysis of 57 nearby Sun-like stars shows that roughly half of these systems have habitable zones subjected to X-ray fluxes equal to or less than that of the Sun, making them promising locations for habitable planets.
Simulations show that uncertainties in the properties of atomic nuclei result in a factor of a few spread in the outcomes of element creation in a black hole accretion disk, highlighting the need for experimental data.
New research suggests that planet formation is likely impacted by the accretion of interstellar gas and dust onto the protoplanetary disk, calling into question the idea of planet formation proceeding in isolation.