N. Erasmus et al 2018 ApJS 237 19
VRI spectrophotometry of 1003 main-belt asteroids suggests a population with an average elongation b/a = 0.74 ± 0.07 and also shows that this is independent of asteroid size and taxonomy.
Anthony L. Piro 2018 AJ 156 54
The combined tidal torques on an exoplanet from a moon and its parent star can force the planet to spin asynchronously with respect to both its moon and its host, tidally heating the exoplanet.
J. Christopher Mihos et al 2018 ApJL 863 L7
In the Leo I group, BST1047+1156, the lowest surface brightness object ever detected via integrated light, may be a disrupting tidal dwarf or a preexisting galaxy with a recent burst of star formation.
Kyoung-Soo Lee et al 2018 ApJ 862 24
A very large star-forming galaxy, G6025, has been discovered and confirmed at z = 3.721; curiously, its stellar population parameters and dust reddening are are similar to those of smaller galaxies at comparable redshifts.
Ana Guimarães and Adriana Valio 2018 AJ 156 50
The best candidates of exomoon-hosting planets are identified from the Kepler database on the basis of dynamical arguments, producing a list of 54 planets with putative “visible” satellites.
Hisashi Hayakawa et al 2018 ApJ 862 15
Historical auroral records from East Asia suggest that the great geomagnetic storm of 1872 February was as extreme as the Carrington Event, the benchmark geomagnetic storm of 1859 September.