David L. Nidever et al 2021 AJ 161 192
The second data release (DR2) of the NOIRLab Source Catalog contains over 3.9 billion unique objects with 68 billion individual source measurements, covering ~35,000 square degrees of the sky.
Wolfgang E. Kerzendorf et al 2021 ApJL 910 L23
With a modest training set of 100,000 spectra, Dalek, an emulator for the TARDIS supernova radiative transfer code, can model Type Ia supernova spectra with percent-level accuracy and a speedup of several orders of magnitude.
Vaidehi S. Paliya et al 2021 ApJS 253 46
A catalog of central engine properties for a sample of 1,077 blazars detected with the Fermi LAT indicate that the overall physical properties of Fermi blazars are likely to be controlled by the accretion rate.
W. Cerny et al 2021 ApJ 910 18
A new ultra-faint stellar system has been found near the Magellanic Clouds; it cannot be conclusively classified at present, but it may be among the oldest and most metal-poor globular clusters in the Magellanic system.
Ryan Magee et al 2021 ApJL 910 L21
New low-latency infrastructure has been commissioned and implemented by LIGO-Virgo to provide early warning for binary neutron star mergers and alert partner facilities before the mergers occur.
Sarah E. Anderson et al 2021 Planet. Sci. J. 2 50
New simulations of the late-stage circumplanetary disk that surrounded Saturn during its formation use the compositions of Enceladus and Titan to place constraints on their formation environment within the disk.