L. E. Rivera Sandoval et al 2020 ApJL 900 L37
The superoutburst duration of SDSS J080710+485259 exceeds the ~2 month viscous time of its accretion disk by a factor of about 5, but irradiation of the donor star might explain this unusual behavior.
Jayanta Dutta et al 2020 ApJ 901 16
Modeling suggests that certain population III protostars ejected from their host clusters early in the universe’s evolution may survive to the present day on the main sequence, and could even be found in the Milky Way.
Prajwal Niraula et al 2020 AJ 160 172
EPIC 249631677 is a transiting Earth-sized (0.95R⊕) planet around an M dwarf star at 57 pc, and it has a period of pi — ~3.14 — days. The confirmed planet is well suited for comparative terrestrial exoplanetology.
Timothy K. Lingard et al 2020 ApJ 900 178
A novel framework, built inside the Zooniverse citizen-science platform, enables the crowdsourcing of model creation for Sloan Digital Sky Survey galaxies, permitting complex modeling of large samples of galaxies.
Tomas Kohout et al 2020 Planet. Sci. J. 1 37
Laboratory studies of Chelyabinsk meteorite samples show that reflectance spectra can be used to distinguish between chondrite darkening from space weathering versus shock effects from impacts and collisions.
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%.