Simulations reveal potential continuous, stochastic, or quasi-periodic high-energy electromagnetic signals of supermassive black hole binaries in galactic centers.
Though the orbital phase of the Jupiter Icy Moons Explorer is expected to reveal the most information about the internal ocean of the largest moon in the solar system, the flyby phase will also yield insights.
Simulations support the hypothesis of accretion stream ignition and the dynamically driven double degenerate double detonation model as an explosion pathway for Type Ia supernovae.
Analysis of spiral structures in galaxies at redshifts greater than 1 suggests that density waves are the dominant cause — as is the case in the universe today — with tidal effects and clumpy star formation playing a role.
William Thompson et al 2025 AJ 169 193
What was once thought to be one brown dwarf was revealed last year to be two brown dwarfs, and new work suggests that these two objects have masses of 37.7 and 34.4 Jupiter masses and a 12-day orbit.
Sensitive X-ray polarization measurements from the Imaging X-ray Polarimetry Explorer challenge the idea that black hole accretion flows typically have large-scale, strong magnetic fields.