N. Nicole Sanchez et al 2018 ApJ 860 20

High-resolution cosmological hydrodynamic simulations of Milky Way-type galaxies imply that galaxy mergers play an important role in feeding the supermassive black hole in MW-type galaxies with merger-rich histories.

C. A. Grady et al 2018 AJ 155 242

Hubble spectroscopy of HD 172555, a member of the β Pictoris Moving Group, demonstrates material on star-grazing orbits, implying the presence of a Jovian-mass or larger body in the system.

Lixin Dai et al 2018 ApJL 859 L20

A unified model for different classes of tidal disruption events is demonstrated, in which the spectral properties of the TDE depend mainly on the viewing angle of the observer with respect to the orientation of the disk.

Jie Yu et al 2018 ApJS 236 42

Solar-like oscillations and granulation are characterized for 16,094 oscillating red giants from Kepler end-of-mission long-cadence data, producing a catalog of properties that can be used as distance indicators and age proxies.

M. Amenomori et al 2018 ApJ 860 13

The first experimental evidence is presented of Earth-directed coronal mass ejections affecting the Sun’s shadow observed in the 3 TeV cosmic-ray intensity, as observed by the Tibet-III air shower array.

E. Winston et al 2018 AJ 155 241

Chandra observations of the deeply embedded Serpens South star-forming region revealed a total of 152 X-ray sources, many of which are confirmed to be young stars that formed in a dense filament.