Christopher P. Ahn et al 2017 ApJ 839 72

Supermassive black holes have been detected in two Virgo ultracompact dwarf galaxies, VUCD3 and M59cO. Their properties support a picture in which the UCDs are tidally stripped remnants of larger galaxies.

Blesson Mathew et al 2017 AJ 153 225

The PDS 11 binary system is a new addition to the interesting class of old, dusty, wide binary classical T Tauri systems in which both components are actively accreting.

Alexander Hubbard 2017 ApJL 840 L5

Planetary systems that underwent dramatic, long-lived accretion events may host planetary systems similar to our own, while ones that didn’t may instead host very close in, tightly packed planetary systems.

A. L. Faisst et al 2017 ApJ 839 71

Observations of z≲2 massive galaxies suggest that quenching is a fast process in galaxies with mass of ≥10^11 solar masses, and that major mergers likely play a significant role in the final steps of their evolution.

Ravit Helled and David Stevenson 2017 ApJL 840 L4

A new model suggests the cores of giant planets might not be distinct from the envelopes surrounding them, unlike the traditional picture of heavy-element cores clearly separated from gaseous envelopes.

Paul L. Schechter et al 2017 AJ 153 219

Eight candidate gravitationally lensed quasar systems discovered in the VST-ATLAS survey have been followed up with spectroscopic observations, revealing a diverse variety of systems.