Zhenlin Zhu et al 2018 ApJS 235 26

14 years of Chandra data are used to create an updated catalog of X-ray point sources in the inner 500” (~20 pc) of our galactic center, including 3,619 sources, ~1,500 of which are new.

Lars A. Buchhave et al 2018 ApJ 856 37

Stars hosting Jupiter analogs have an average metallicity close to solar, in contrast to their counterparts hosting hot Jupiters and eccentric cool Jupiters, which have super-solar metallicities.

Chao He et al 2018 ApJL 856 L3

Experimental laboratory investigations of photochemical haze formation indicate that atmospheric temperature and metallicity strongly affect particle color and size, thus altering the particles’ optical properties.

Amy A. Simon et al 2018 AJ 155 151

Observations of Jupiter’s Great Red Spot over 150 reveal its gradual shrinking, an increase in its westward drift rate, and a decrease in its short-wavelength reflectance and north–south color asymmetry.

Paul Eigenthaler et al 2018 ApJ 855 142

258 dwarf-galaxy candidates have been identified between -17 and -8 mag in the Fornax cluster using imaging data from the Next Generation Fornax Cluster Survey, conducted with the Dark Energy Camera.

Nikhil Mukund et al 2018 ApJS 235 22

A new machine-learning-based information retrieval system for astronomical observatories analyzes a site’s existing documentation to group information related to a query and present it online to a querying user.