Mandy C. Chen et al 2018 ApJ 863 135
The mass of a supermassive black hole in the brightest cluster galaxy of MACS J1149.5+2223 at z = 0.54 is estimated using one of the multiply lensed images of a background spiral galaxy at z = 1.49.
Jinhyuk Ryu and Myung Gyoon Lee 2018 ApJL 863 L38
Two new globular clusters, RLGC 1 and RLGC 2, have been serendipitously discovered in infared survey data in the far-half region of the Milky Way, and they may belong to the halo of the Milky Way.
A. R. G. Santos et al 2018 ApJS 237 17
Photometric Kepler data of 87 solar-type stars is used to to detect and characterize stellar magnetic cycles through asteroseismology; >60% of the stars show evidence for (quasi-)periodic variations in their frequency shifts.
Ang Liu et al 2018 ApJ 863 102
An investigation of the dynamics of the galaxy cluster A2142 reveal 868 members and a number of substructures in the galaxy distribution that suggest multiple minor mergers in this cluster’s past.
Wei Zhu and Yanqin Wu 2018 AJ 156 92
Analysis of radial-velocity observations of Kepler data indicates that cold Jupiters appear three times more often around hosts of super Earths than they do around field stars.
K. D. Alexander et al 2018 ApJL 863 L18
New observations of the binary neutron star merger GW170817 at Δt ≈ 220–290 days post-merger support models of a successful structured jet expanding into a low-density circumbinary medium.