Asad Ukani et al 2026 ApJ 1004 171
Modeling of the Milky Way’s circumnuclear disk of molecular gas suggests that the gas is distributed in a disk with inner and outer radii of 1.0 and 2.9 parsecs and an inclination of 60 degrees.
Michelle L. Hill et al 2026 Planet. Sci. J. 7 140
Planets with radii 20% or possibly 30% smaller than Earth’s radius can maintain atmospheres, with initial carbon content, core radius fraction, initial mantle temperature, and other factors playing a role.
Aneesh Baburaj et al 2026 AJ 172 28
New observations of the coldest directly imaged planetary-mass companion of the pre-JWST era show a potential planetary formation pathway for the 25.2-Jupiter-mass object.
Itai Sfaradi et al 2026 ApJL 1005 L19
Recent radio rebrightening of a supernova observed in 2012 suggests that either the progenitor star experienced a past change in mass-loss rate or wind speed, or there is an off-axis relativistic jet present.
Ádám Mátéfy et al 2026 ApJ 1004 142
Gaia21bja is a young stellar object that brightens by up to 1.7 magnitudes during its outbursts, with its luminosity and mass-accretion rate increasing by a factor of 5.5–6 during the bursts.
Yunshi Zeng et al 2026 ApJS 284 63
Using more than 50,000 images of coronal mass ejections, researchers have developed a novel machine-learning classification framework applicable to coronal mass ejections.