B. Lanzoni et al 2018 ApJ 861 16
Based on measurements of radial velocities of 800 individual stars, the globular cluster M5 is shown to have one of the cleanest and most coherent rotation patterns ever observed for globular clusters.
Kanak Saha and Arianna Cortesi 2018 ApJL 862 L12
An isolated cold galactic disk can become violently unstable, leading to fragmentation and formation of stellar clumps that increase the stellar disk velocity dispersion, forming an isolated lenticular galaxy.
T. Močnik et al 2018 AJ 156 44
The visual geometric albedo of the hot Jupiter WASP-104b is lower than 0.03 at 95% confidence, making it one of the least-reflective planets found to date.
Vadim A. Semenov et al 2018 ApJ 861 4
Global depletion times and star-forming gas mass fractions in simulated galaxies show trends as a function of local star-formation efficiency, strength of stellar feedback, and star-formation threshold.
Roger E. Cohen et al 2018 AJ 156 41
A new HST program is designed to obtain deep, high spatial resolution multiband imaging of 16 poorly studied galactic globular clusters located toward the inner galactic bulge and disk, previously inaccessible due to extinction.
Dana I. Casetti-Dinescu et al 2018 ApJL 862 L9
Gaia DR2 proper motions confirm that four young, main-sequence stars formed locally, in situ, in the Large Magellanic Cloud’s periphery, establishing that recent star formation has occurred in the outskirts of the LMC.