Brett M. Morris 2020 ApJ 893 67
Space-based photometry of F, G, and K stars aged from 10 Myr to 4 Gyr reveal typical starspot coverages in the range of 1%–10%, with decreasing coverage occurring with increasing stellar age.
M. Tavani et al 2020 ApJL 893 L42
X-ray and γ-ray observations of the periodic repeating fast radio burst FRB 180916 obtained by AGILE and Swift place stringent upper limits on high-energy emission, constraining the source mechanism.
Michael H. Wong et al 2020 ApJS 247 58
High spatial resolution images of Jupiter were captured by Hubble in 2016 to complement data taken by the Juno spacecraft during perijove passes, providing insight into a variety of observed atmospheric phenomena.
Yu-Hsuan Teng and Naomi Hirano 2020 ApJ 893 63
Observations of the Orion Molecular Cloud 1 with the Submillimeter Array and the Submillimeter Telescope reveal multiple filaments of dense gas with typical width of 0.02–0.03 pc collapsing toward the Orion Nebula Cluster.
Michele Kaufman et al 2020 AJ 159 180
Gemini and ALMA observations of a bright starburst clump on an outer arm of the interacting galaxy NGC 2207 reveal activity that suggests the grazing galaxy collision indirectly triggered the starburst.
Diana Scognamiglio et al 2020 ApJ 893 4
A new census of ultracompact massive galaxies (UCMGs) has discovered 19 new confirmed UCMGs at low and intermediate redshifts, contributing to the largest sample of UCMGs ever collected.