M. Sten Delos et al 2026 ApJ 1006 125
The kinematics of small Milky Way satellites should differ depending on whether dark matter is warm or cold; current data constrain the mass of warm dark matter particles to >5.8 keV at 95% confidence.
Gokul P. Srinivasaragavan et al 2026 ApJL 1006 L36
Through modeling, researchers determined that a recently discovered supernova accompanied by an X-ray flash likely gave rise to a long-lived magnetar that may be surrounded by an accretion disk.
Arun Seshadri et al 2026 AJ 172 98
The molecular cloud complex G12.79+0.43 contains 82 young stellar object candidates; while this complex is spatially associated with a larger superbubble, it’s not yet clear if there is a causal association.
Junyi Zhang et al 2026 ApJ 1004 66
Eruptions taking place in different locations on the Sun (e.g., on the solar limb versus on the disk) appear to have different spectral characteristics, paving a way for source regions of stellar flares to be studied.
S. Corley et al 2026 ApJS 285 60
The upcoming Wide Fast Deep and Deep Drilling Field surveys have limited potential to confirm exoplanets, with just a handful of hot planets around M-dwarf stars likely to be confirmed in the Deep Drilling Field.
Mengting Ju et al 2026 ApJL 1002 L18
Using data taken with a novel slit-stepping observing mode, researchers have found an anticorrelation between radial metallicity gradients and radial mixing time for galaxies at z ~ 1.