Yanxia Xie et al 2018 ApJ 867 91
Nanometer-size dust grains have now been detected in a wide variety of astronomical environments, from galactic high-latitude clouds to nearby star-forming galaxies and galaxies with low levels of nuclear activity.
Audrey Thirouin et al 2018 ApJS 239 4
Over 4.5 years, the Mission Accessible Near-Earth Object Survey assembled 228 near-Earth object (NEO) light curves; the team characterizes two NEOs as appropriate targets for a potential robotic/human mission.
Adam M. Dempsey and Benjamin E. Nelson 2018 ApJ 867 75
Dissipative N-body simulations demonstrate that the GJ876 system, an M-dwarf hosting three planets orbiting in a chaotic 4:2:1 Laplace resonance, can be formed through smooth disk migration models.
Luis A. Zapata et al 2018 AJ 156 239
ALMA’s resolved images of carbon monoxide toward the binary flows associated with the BHR 71 protostellar system reveal for the first time solid evidence that their flows are partially colliding.
Howard Chen et al 2018 ApJL 868 L6
Simulations show that changes in illumination geometry and rotation-induced circulation can influence the global distribution of atmospheric biosignatures on tidally locked exoplanets.
Pei Zuo et al 2018 ApJ 867 13
The discovery of a rare, isolated dark cloud currently undergoing H2 formation lets us examine the atomic-to-molecular transition and suggests that a classical star formation picture is favored over fast star formation models.