Ruo-Yu Liu et al 2018 ApJ 858 9
Winds driven by active galactic nuclei can only account for <30% of the observed extragalactic gamma-ray background; for small neutrino spectral indices, such winds may still account for the IceCube neutrino flux.
E. Bachelet et al 2018 AJ 155 191
The possibility is explored of systematically measuring microlensing parallax using a telescope based on the Moon’s surface or other space-based observing platform (like the upcoming WFIRST space telescope).
Susan E. Thompson et al 2018 ApJS 235 38
The latest catalog of transiting exoplanets from Kepler’s Data Release 25 includes 8,054 Kepler Objects of Interest, of which 4,034 are planet candidates with periods between 0.25 and 632 days.
Callie E. Hood et al 2018 ApJ 857 144
New observations suggest that tidal features in gas-poor galaxies are typically streams/shells from dry mergers or satellite disruption, whereas those in gas-rich galaxies are often tails/arms from resonant interactions.
Reto Trappitsch et al 2018 ApJL 857 L15
Isotopic analyses of a chondrule from the primitive meteorite Semarkona suggest that supernova injection of 60Fe into the early solar system is not necessary to account for the measured solar system’s initial amount of 60Fe.
Johnny P. Greco et al 2018 ApJ 857 104
Extended low-surface-brightness objects identified in the Hyper Suprime-Cam Subaru survey are diverse, ranginig from dwarf spheroidals and ultradiffuse galaxies in nearby groups, to gas-rich irregulars, to giant spirals.