Samantha K. Trumbo et al 2018 AJ 156 161
New ALMA observations comprise the first spatially resolved thermal data set with complete coverage of Europa’s surface, capturing spatially localized thermal variations on the scale of geologic and compositional units.
Catherine Zucker et al 2018 ApJ 864 153
A standardized analysis of the physical properties of large-scale filaments in our galaxy reveal three broad categories of filaments, which could indicate different formation mechanisms or histories.
Ozge Ozgurel et al 2018 ApJL 865 L16
Models of metals’ journey through Europa’s ice are consistent with the assumption that sodium and potassium come from the sputtering of materials issued from its underlying ocean and exposed by resurfacing events.
Kelly A. Douglass et al 2018 ApJ 864 144
SDSS observations of ~1,500 dwarf galaxies suggest that the void environment has a slight influence on dwarf galaxy chemical evolution; void dwarfs have different chemical abundances than dwarfs in denser regions.
Frédérique Baron et al 2018 AJ 156 137
WEIRD survey results constrain the occurrence of 1–13 MJup planetary-mass companions on orbits with a semimajor axis between 1,000 and 5,000 AU at less than 0.03, with a 95% confidence level.
Eli Visbal and Zoltán Haiman 2018 ApJL 865 L9
Simulations suggest that high-redshift direct-collapse black holes will be distinguishable from smaller black-hole seeds due to the unusually high hlack-hole mass to stellar mass ratios of the faintest observed quasars.