Jie Jiang et al 2018 ApJ 863 159
A scheme is presented to investigate the predictability of the solar cycle over one cycle; when a cycle has been ongoing for >3 years, the sunspot group emergence can be predicted during the rest time of the cycle.
Xiaodian Chen et al 2018 ApJS 237 28
The first all-sky mid-infrared variable-star catalog based on Wide-field Infrared Survey Explorer five-year survey data contains 50,282 carefully and robustly selected periodic variables, of which 69% are new.
Brett Salmon et al 2018 ApJL 864 L22
The Reionization Lensing Cluster Survey (RELICS) Hubble Treasury program has uncovered SPT0615-JD1, a fortuitous z ~ 10 galaxy candidate stretched into an arc over ~2.5″ by the effects of strong gravitational lensing.
Keivan G. Stassun et al 2018 AJ 156 102
The Transiting Exoplanet Survey Satellite (TESS) will obtain 2-min-cadence observations of 200,000–400,000 stars selected for their likelihood of hosting small, detectable transiting planets.
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.