Benedikt Diemer 2017 ApJS 231 5
The Subhalo and PARticle Trajectory Analysis (SPARTA) parallel computer code can analyze the orbits of billions of particles in large cosmological simulations of dark matter halos, reliably measuring halo properties.
Krishnendu Mandal et al 2017 ApJ 842 89
New computational advancements have been made in time–distance helioseismology, a process that allows us to infer internal properties of the Sun from surface measurements of wave travel times.
Takashi J. Moriya et al 2017 ApJL 843 L19
The superluminous transients that appear at central regions of some active galactic nuclei may be powered by the interaction between accretion-disk winds and clouds in broad-line regions surrounding them.
K. Bansal et al 2017 ApJ 843 14
The relative motion of the two cores of a supermassive black hole binary is measured in radio galaxy 0402+379 and used to constrain the system. This is the first black hole system resolved as a visual binary.
Michael R. Blanton et al 2017 AJ 154 28
An overview of SDSS-IV is provided, including its major spectroscopic programs: APO Galactic Evolution Experiment 2, Mapping Nearby Galaxies at APO, and extended Baryon Oscillation Spectroscopic Survey.
Adam Smercina et al 2017 ApJL 843 L6
New observations with the Subaru Hyper Suprime-Cam identify a new dwarf galaxy that may be a satellite of BK5N, which is in turn a satellite of M81. This may be one of the first detected satellites-of-a-satellite.