Daniel Stern and Dominic J. Walton 2020 ApJL 895 L38
Archival Keck data are used to identify for the first time, from a detected emission line, the spectroscopic redshift for the source gravitationally lensed into the first Einstein ring ever detected: MG 1131+0456.
Ivan N. Sharykin and Alexander G. Kosovichev 2020 ApJ 895 76
Analysis of helioseismic events — sunquakes — in Solar Cycle 24 shows that many strong sunquakes were produced by solar flares of low M class, and the sunquake mechanism is associated with high-energy particles.
Ryan Hausen and Brant E. Robertson 2020 ApJS 248 20
Morpheus is a publicly available code that leverages advances in deep learning to perform source detection, source segmentation, and morphological classification of astronomical sources on a pixel-by-pixel basis.
Angelo Ricarte et al 2020 ApJL 895 L8
Simulations suggest that prior to quenching star formation, ram pressure on in-falling galaxies in a cluster triggers enhanced accretion onto the galaxy’s central black hole. AGN feedback then contributes to quenching.
Travis A. Berger et al 2020 AJ 159 280
A set of homogeneously derived properties of 186,301 Kepler stars is presented, allowing unprecedented investigations into trends in stellar and exoplanet properties as a function of stellar mass and age.
Lorenzo Spina et al 2020 ApJ 895 52
High-resolution spectra of 211 Sun-like stars are used to analyze how magnetic fields and stellar spots can alter the equivalent widths of absorption lines in stellar spectra, varying during the star’s activity cycle.