T. R. Hunter et al 2017 ApJL 837 L29

Dust emission from a protostar in the massive protocluster NGC 6334I increased by a factor of 4 between 2008 and 2015, providing observational evidence of a sudden accretion event in the protostar’s growth.

Jason K. Chu et al 2017 ApJS 229 25

Far-infrared images and photometry are presented for 201 Luminous and Ultraluminous Infrared Galaxies (LIRGs), enabling detailed studies of AGN and starburst activity in LIRGs in the local universe.

David Nesvorný et al 2017 AJ 153 103

Modeling suggests the large-asteroid impact flux dropped by 1–2 orders of magnitude during the first 1 Gyr of the Solar System’s existence and remained relatively unchanged over the last 3 Gyr.

Rui Xue et al 2017 ApJ 837 172

Lyα halo sizes at high redshift are observed to scale with various host galaxy properties, suggesting that the physical conditions of the circumgalactic medium change with halo mass and/or star formation rates.

David Radice 2017 ApJL 838 L2

Simulations of the flow inside remnants of binary neutron star mergers show that turbulence can significantly affect the structure and survival time of the merger remnant and its gravitational-wave emissions.

Mukremin Kilic et al 2017 ApJ 837 162

A detailed analysis of the white dwarfs in the local 40 pc suggests ages of 6.8–7.0 Gyr for the thin disk and 8.6–8.8 Gyr for the thick disk. The inner galactic halo is estimated to have an age of 9.1–13.9 Gyr.