Kathryn F. Neugent et al 2020 ApJ 900 118
The binary fraction of unevolved massive stars is thought to be 70%–100%. In contrast, the binary fraction of evolved red supergiants, as measured in the Large Magellanic Cloud, is around 20%.
Jennifer A. Burt et al 2020 AJ 160 153
The TESS discovery of a hot-Neptune around TOI-824 could lead to the detailed characterization of the most irradiated small planet at the edge of the hot Neptune desert that has retained its atmosphere to date.
F. Massaro et al 2020 ApJL 900 L34
Analysis of large-scale environments indicates that BL Lac objects and radio galaxies live in significantly different environments, challenging predictions of the unification scenario of active galaxies.
Chengze Liu et al 2020 ApJS 250 17
A sample of more than 600 ultracompact dwarf (UCD) galaxies are identified in the Virgo galaxy cluster, primarily concentrated within Virgo’s main subclusters, around its brightest galaxies.
Richard Udall et al 2020 ApJ 900 80
Assuming the loudest marginal trigger found by LIGO in 2015–2017, GW170502, was a binary black hole merger, then it represents the formation of a 157-solar-mass intermediate mass black hole.
Stefano Bellotti et al 2020 AJ 160 131
Both self-luminous and reflected-light exoplanets around eclipsing binary stars could be directly imaged by using the eclipse as a natural starshade, thus increasing the planet to star brightness contrast.