The precise chemical compositions of colliding neutron stars can greatly affect the light curve of the collision; new research shows that many kilonovae will be excellent targets for upcoming ultraviolet telescopes.
The first major data sample from the Dark Energy Spectroscopic Instrument survey have been released, containing 466,447 Milky Way targets; 428,758 bright galaxies; 227,318 luminous red galaxies; and more.
YiMing He et al 2024 ApJS 274 6
A new model that has attained 99.45% precision has been used to identify 4,383 carbon stars, including 1,197 newly identified as such, out of 11,226,252 stars in the LAMOST sample
A young white dwarf may have recently transferred 0.15 solar mass of matter to its binary companion, creating a barium blue straggler star that was identified by its unusual chemical composition.
Newly spliced-together “Frankenspectra” spanning mid-infrared to far-ultraviolet wavelengths have been made available online and will aid in the study of dust on planetary bodies.
The IceCube Neutrino Observatory did not detect any discrete neutrino flares between 2011 and 2021; hundreds or thousands of flares are needed to explain the diffuse neutrino flux.