A. M. El-Batal et al 2016 ApJ 826 L12
The stellar-mass black hole GS 1354−645 was observed with NuSTAR during an outburst state. Its measured reflection spectrum requires a tremendous black hole spin of a ≥ 0.98 and a high inclination.
Erika R. Nesvold et al 2016 ApJ 826 19
Small dust grains in circumstellar debris disks can be produced not only by perturbers within the disk, but also by stellar-mass bodies orbiting at an angle outside of the disk.
Masayuki Tanaka et al 2016 ApJ 826 L19
“The Eye of Horus” is the first double source plane system with spectroscopic redshifts determined for both sources. The outer ring is located at z=1.988 and the inner arc at z=1.302.
Masafumi Yagi et al 2016 ApJS 225 11
The largest catalog of ultra-diffuse galaxies — a new type of galaxy characterized by its large size and low luminosity — has been created using Subaru data archives for the Coma cluster.
Francesca Annibali et al 2016 ApJ 826 L27
New stellar streams have been found around the dwarf irregular galaxy DDO 68, one of the most metal-poor and least massive dwarfs. This is evidence of the accretion of two smaller companions.
Todd C. Hillwig et al 2016 AJ 152 34
The photometrically variable central stars of the planetary nebulae HaTr 4 and Hf 2-2 are confirmed to be close binary systems with a hot central star and an irradiated cool companion.