Adric R. Riedel et al 2017 ApJ 840 87

Spectroscopic and kinematic analysis of 79 nearby M dwarfs in 77 systems reveal 44 young stars, of which 14 are not members of any known moving groups within 100 pc of the Sun.

Bojan Novaković et al 2017 AJ 153 266

Evidence is found for the existence of a new family of dark carbonaceous asteroids in the inner asteroid belt; numerical simulations suggest that ~30 of these family members may exist in near-Earth-object space.

B. Quarles et al 2017 ApJL 842 L5

By running thousands of N-body dynamical simulations of the TRAPPIST-1 system, scientists find that for solutions stable for millions of years, most of the planets are likely consistent with an Earth-like composition.

Chao Ma et al 2017 ApJS 230 14

A new method accurately measures the spectral energy distribution and current star formation rate of the nuclear ring in the barred spiral galaxy NGC 1512, based on high-res Hubble and Spitzer images.

R. J. Filwett et al 2017 ApJ 838 23

Analysis of suprathermal heavy ion abundances in 41 corotating interaction regions (compression regions corotating with the Sun) confirm that these ions are accelerated locally, rather than by shocks beyond 1 AU.

Kenji Kurosaki and Masahiro Ikoma 2017 AJ 153 260

Condensation of heavy elements keeps ice-giant planet atmospheres hot, accelerating the planets’ cooling. This could plausibly explain the difference between Uranus’ and Neptune’s brightnesses.