Tomoyuki Tajiri et al 2020 ApJS 251 18
35 dippers — young stellar objects that exhibit episodic dimming — are found within one year’s worth of Transiting Exoplanet Survey Satellite (TESS) full-frame images using a convolutional neural network.
Felipe O. Alves et al 2020 ApJL 904 L6
New ALMA observations of a nearly edge-on disk reveal an interesting case where both a star (from the environment and the disk) and a planet (from the disk) are growing in tandem.
Nicholas Wogan et al 2020 Planet. Sci. J. 1 58
New modeling suggests that volcanoes are unlikely to produce methane fluxes comparable to biological fluxes, indicating that atmospheric methane with carbon dioxide can be used as a biosignature.
Kevin C. Cooke et al 2020 ApJ 903 106
New observations of CQ 4479, a cold quasar at z ~ 0.405, reveal a starburst galaxy with a young stellar population, a high gas mass fraction, and an early-stage AGN that doesn’t yet dominate the far-infrared emission.
Javier Roa et al 2020 AJ 160 250
New analysis suggests that 90% of near-Earth asteroids and 93% of potentially hazardous asteroids are detectable within the next 50 years using an an I52-class or Subaru-class telescope.
Andreas M. Hein et al 2020 ApJL 903 L36
A precursor astrobiological mission could search for putative lifeforms in Venus’s cloud deck using instrument balloons, which could be delivered to Venus via launch opportunities in 2022–2023.