R. Sahai et al 2017 ApJ 841 110

ALMA observations confirmed the Boomerang Nebula as the coldest known object in the universe, with a massive high-speed outflow that has cooled significantly below the cosmic background temperature.

Aurora Y. Kesseli et al 2017 ApJS 230 16

Using SDSS’s Baryon Oscillation Spectroscopic Survey spectra, a library of empirical stellar spectra is created with extensive temperature (spectral types O5 – L3) and metallicity (−2.0 – +1.0 dex) coverage.

Paul D. Lasky et al 2017 ApJL 843 L1

The first measurement is made of the braking index of two putative millisecond magnetars born in short gamma-ray bursts: n = 2.9 ± 0.1 and n = 2.6 ± 0.1.

Thomas Barclay et al 2017 ApJ 841 86

Dynamical models of ejected material during late-stage planet formation suggest that ~2.5 terrestrial-mass planets are ejected per star in the Galaxy, possibly contributing to the free-floating planet population.

Ivan I. Shevchenko 2017 AJ 153 273

Several habitability conditions are fulfilled automatically by circumbinary planets of main-sequence stars, whereas on Earth, these conditions are fulfilled only by chance.

Phyllis M. Lugger et al 2017 ApJ 841 53

Chandra X-ray sources in a globular cluster are matched with optical counterparts, including 16 cataclysmic variables whose properties support production by dynamical interaction near the cluster center.