Observations and Numerical Modeling of the Jovian Ribbon
R. G. Cosentino et al 2015 ApJ 810 L10
Simulations show that the Jovian Ribbon, a wavy, high-contrast feature in Jupiter’s atmosphere near 30°N, can be reproduced with a 35 m/s westward jet.
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Asteroid Spin-rate Study Using the Intermediate Palomar Transient Factory
Chan-Kao Chang et al. 2015 ApJS 219 27
This survey by the intermediate Palomar Transient Factory measured the rotation periods of 1438 asteroids. The observations included the discovery of a new large super-fast rotator.
NuSTAR Discovery of an Unusually Steady Long-term Spin-up of the Be Binary 2RXP J130159.6-635806
Roman A. Krivonos et al. 2015 ApJ 809 140
Observations of X-ray pulsar 2RXP J130159.6–635806 suggest it has undergone strong and steady spin-up for the last 20 years, likely as a result of long-term mass accretion.
The Formation of Filamentary Bundles in Turbulent Molecular Clouds
Nickolas Moeckel and Andreas Burkert 2015 ApJ 807 67
Spatially distinct regions can masquerade as coherent star-forming filaments both in projected appearance and velocity diagnostics.
Linking Stellar Coronal Activity and Rotation at 500 Myr: A Deep Chandra Observation of M37
Alejandro Núñez et al. 2015 ApJ 809 161
This study of stellar rotation and activity at 500 Myr, using an extensive sample of stars from the open cluster M37, will help to calibrate the stellar age-rotation–activity relation.
Hubble Space Telescope and HI Imaging of Strong Ram Pressure Stripping in the Coma Spiral NGC 4921: Dense Cloud Decoupling and Evidence for Magnetic Binding in the ISM
Jeffrey D. P. Kenney et al. 2015 AJ 150 59
HST observations of spiral galaxy NGC 4921 reveal how ram pressure strips the ISM from its disk and suggest that magnetic fields help bind the dense gas clouds to the lower-density gas.