R. O. Chancia and M. M. Hedman 2016 AJ 152 211
Voyager 2 images of Uranus’s α and β rings show patterns that may be wakes from small moonlets orbiting exterior to the rings. The moonlets’ estimated sizes are too small to resolve in the images, however.
B. Luo et al 2017 ApJS 228 2
An X-ray catalog of over 1000 sources is presented for the ~7 million second exposure of the Chandra Deep Field-South, which covers a total area of 484.2 square arcmin at unprecedented X-ray sensitivity.
Qian H. S. Wang et al 2016 ApJ 833 99
Deep Chandra X-ray observations of the merging galaxy cluster A520 reveal a long trail of dense clumps, possibly the fragments of a cool core stripped from the infalling subcluster by ram pressure.
Gijs D. Mulders et al 2016 AJ 152 187
A study of 20,000 Kepler stars shows that exoplanets with orbital periods of <10 days are preferentially found around metal-rich stars. The largest host metallicity difference is seen for hot, rocky planets.
Noemie Globus and David Eichler 2016 ApJL 833 L17
Changing an ultra high energy cosmic ray’s rigidity from a given source is shown to change the expected arrival direction, as does motion of the solar system through the interstellar medium.
Jaejin Shin et al 2016 ApJS 227 31
148 X-ray cavities were found in Chandra archive data, with similar detection rates among galaxy clusters, groups and individual galaxies. This suggests their formation is likely independent of environment.