W. Cerny et al 2023 ApJL 953 L21
A newly discovered ultra-faint star cluster has intriguing but uncertain origins: kinematic data can’t yet tell us whether the cluster belongs to the Milky Way, the Small Magellanic Cloud, or the Large Magellanic Cloud.
Kartick C. Sarkar et al 2023 ApJ 951 36
Low-luminosity jets and winds from supernovae or tidal disruption events are the only remaining explanation for the Fermi/eROSITA bubbles, according to recent research.
Maria C. Schutte et al 2023 AJ 166 92
A new modeling method allows for researchers to determine the temperature of a starspot from just one passage of an exoplanet over the spot, as demonstrated by modeling of the K dwarf HAT-P-11.
S. J. Bromley et al 2023 ApJS 268 22
New calculations of collisional cross sections of certain elements can improve our molding and our understanding of kilonovae, the explosions caused by colliding neutron stars.
Daniel C. M. Palumbo et al 2023 ApJL 952 L31
Creating an extremely long baseline interferometer, such as could be achieved by placing a detector in space or upping the frequencies of our Earth-bound detector, could enable studies of black hole photon rings.
Jonas P. Pereira et al 2023 ApJ 950 185
Neutron stars, the exceptionally dense remnants of massive stars, might contain cores of quark matter — a possibility that could be distinguished from a nucleonic core by future gravitational wave observations.