Megan Donahue et al 2020 ApJ 889 121
A sample of X-ray sources — previously either unidentified or classified as X-ray active galactic nuclei — are studied with new, brief Chandra observations; eight are found to be X-ray luminous clusters of galaxies.
Jessica E. Libby-Roberts et al 2020 AJ 159 57
Transit observations of two large, low-density super-puff planets orbiting Kepler 51 reveal no significant water absorption features in their atmospheres, possibly indicating the presence of high-altitude aerosol layers.
Alexander P. Stephan et al 2020 ApJ 889 45
Modeling shows that planet consumption by stellar hosts can cause transient luminosity features that last on the order of centuries to millennia, and post-consumption stellar spin can increase to break-up speeds.
Daniel Tafoya et al 2020 ApJL 890 L14
New observations of CO emission from the asymptotic giant branch star W43A trace the whole stream of the star’s jet from its driving source out to the regions where it shapes the circumstellar envelope.
Fabo Feng et al 2020 ApJS 246 11
Reanalysis of spectrometry data for 38 M dwarfs uncovered 16 planet candidates, including two conservative-habitable-zone super-Earths and a cold super-Neptune that may all be candidates for direct imaging.
Kianusch Mehrgan et al 2019 ApJ 887 195
A supermassive black hole discovered at the center of Holm 15A, the brightest cluster galaxy of the galaxy cluster Abell 85, is the most massive black hole with a direct dynamical detection in the local universe.