Hu Zou et al 2019 ApJS 245 4
The Beijing–Arizona Sky Survey, a wide and deep optical imaging survey covering a 5400 deg2 area, aims to provide galaxy and quasar targets for follow-up by the Dark Energy Spectroscopic Instrument.
Yutaka Hirai et al 2019 ApJ 885 33
New simulations demonstrate that neutron-star mergers, asymptotic giant branch stars, electron-capture supernovae, and rotating massive stars all play roles in the enrichment histories of Local Group dwarf galaxies.
Michael W. Coughlin et al 2019 ApJL 885 L19
Even with single-detector gravitational-wave events localized to thousands of square degrees, systematic kilonova discovery is feasible with follow-up campaigns with telescopes like ZTF and Palomar Gattini-IR.
Frédérique Baron et al 2019 AJ 158 187
Based on direct-imaging observations of a sample of 344 stars in nearby young associations, the occurrence rate for companions with masses of 1–20 Jupiter masses in the range of 5–5000 AU is ~11%.
Kyle Kremer et al 2019 ApJ 885 2
N-body models show that 10%–50% of primordial planetary systems in dense star clusters can be broken through dynamical encounters over a cluster’s full lifetime, populating clusters with “free-floating” planets.
Hadis Goodarzi et al 2019 ApJS 244 37
Analysis of the light curves of 1740 flare stars indicates that flare frequency and the total power of flares correlates with increasing relative magnetic feature coverage and contrast in F–M-type stars.