Kevin France et al 2018 ApJS 239 16
A survey of far-ultraviolet emission-line spectra from over 100 F, G, K, and M dwarfs reveals that exoplanet host stars display factors of 5–10 lower UV activity levels compared with the non-planet-hosting sample.
Kornpob Bhirombhakdi et al 2018 ApJL 868 L32
Deep X-ray limits identify a missing energy problem in SLSNe-I, a nearby hydrogen-poor superluminous supernova that has been studied in X-rays to detect the spindown powered emission from a magnetar engine.
Maria Cristina Baglio et al 2018 ApJ 867 114
During its 2017/2018 outburst, black hole X-ray binary candidate MAXI J1535–571 exhibited significant mid-infrared short-timescale variability, suggesting the presence of a flickering jet.
Joseph E. Rodriguez et al 2018 AJ 156 245
The nearby (78 pc) K-star K2-266 hosts six possible planets in a compact system — including one with an inclination that is significantly misaligned with the other five planet candidates, suggesting a different origin.
R. L. Guo et al 2018 ApJL 868 L23
Internally driven magnetic reconnection is shown to be fundamentally important in accelerating particles in Saturn’s dayside magnetosphere, and likewise in the rapidly rotating Jovian magnetosphere and beyond.
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.