Roeland P. van der Marel and Johannes Sahlmann 2016 ApJL 832 L23

The first results from Gaia on Local Group dynamics show proper motions and rotation curves consistent with those measured and inferred from past programs, indicating a promising start for this mission.

Fabio Antonini et al 2016 AJ 152 174

The majority of Jupiter pairs are shown to be dynamically unstable if the inner planet is placed more than 1 AU from the host star, suggesting such planets could not have tidally migrated to their current orbits.

Brian Punsly and Preeti Kharb 2016 ApJ 833 57

Deep Very Large Array imaging is used to detect diffuse extended structure — radio lobes — around the jets of the famous radio-loud quasar 3C 273 for the first time.

André Izidoro et al 2016 ApJ 833 40

The orbits of the asteroids in our solar system may have been excited to their current state if Jupiter’s and Saturn’s early orbits were chaotic, and the gas giants only later moved to their current orbits.

Michael G. Gowanlock 2016 ApJ 832 38

Models of the lethality of long gamma-ray bursts (GRBs) in the Milky Way suggest that over the past 1 Gyr, the inner Galaxy hosts the greatest density of stars (and associated planets) that survive GRB events.

Sota Arakawa and Taishi Nakamoto 2016 ApJL 832 L19

A solar system model is put forward in which nm-sized silicate grains are produced by evaporation and recondensation events in early solar nebula, and these nanograins aggregate into rocky planetesimals.