Ting-gui Wang et al 2019 ApJL 886 L5
A recent large-amplitude mid-infrared outburst in the white dwarf 0145+234 in the NEOWISE Survey data is consistent with the tidal breakup of an exoasteroid by the white dwarf.
Benjamin J. S. Pope et al 2019 ApJS 245 8
Via analysis of the unsaturated scattered-light “halo” around the stars that saturated the Kepler detector, precise light curves are retrieved for of most of the brightest stars in K2 fields from Campaign 4 onward.
José G. Fernández-Trincado et al 2019 ApJL 886 L8
A unique collection of metal-poor giant stars that exhibit anomalously high levels of 28Si have been found in the Milky Way’s inner stellar halo, possibly pointing to a past accretion event.
Heather A. Elliott et al 2019 ApJ 885 156
New Horizons measurements show that the solar wind speed is reduced by 5%–7% between 30 and 43 AU relative to the speeds at 1 AU, as the wind encounters an increasing amount of interstellar material.
Chayan Mondal et al 2019 AJ 158 229
Far-ultraviolet imaging of the nearby dwarf irregular galaxy IC 2574 indicates that star formation in the galaxy is partly triggered due to expanding H I holes, but in most sites, it’s driven by other mechanisms.
C. Simpson et al 2019 ApJ 885 133
In the next stage of the Super-Kamiokande experiment, gadolinium sulfate will be added to the particle detector, potentially making it sensitive enough to be able to provide pre-explosion warnings for core-collapse supernovae.