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81 papers · 1 filter
Interacting vorticity waves as an instability mechanism for MHD shear instabilities
Eyal Heifetz, Julian Mak, Jonas Nycander +1
The interacting vorticity wave formalism for shear flow instabilities is extended here to the magnetohydrodynamic (MHD) setting, to provide a mechanistic description for the stabil…
Characterizing K2 Planet Discoveries: A super-Earth transiting the bright K-dwarf HIP 116454
Andrew Vanderburg, Benjamin T. Montet, John Asher Johnson +43
We report the first planet discovery from the two-wheeled Kepler (K2) mission: HIP 116454 b. The host star HIP 116454 is a bright (V = 10.1, K = 8.0) K1-dwarf with high proper moti…
The orbit and dynamical evolution of the Chelyabinsk object
Vacheslav V. Emel'yanenko, Sergey A. Naroenkov, Peter Jenniskens +1
The orbit of the Chelyabinsk object is calculated, applying the least-squares method directly to astrometric positions. The dynamical evolution of this object in the past is studie…
Yarkovsky-Driven Spreading of the Eureka Family of Mars Trojans
Matija Ćuk, Apostolos A. Christou, Douglas P. Hamilton
Out of nine known stable Mars Trojans, seven appear to be members of an orbital grouping including the largest Trojan, Eureka. In order to test if this could be a genetic family, w…
Characterizing the infrared spectra of small, neutral, fully dehydrogenated PAHs
C. J. Mackie, E. Peeters, C. W. Bauschlicher +1
We present the results of a computational study to investigate the infrared spectroscopic properties of a large number of polycyclic aromatic hydrocarbon (PAH) molecules and their…
A sensitive spectral survey of interstellar features in the near-UV [3050-3700Å]
Neil Hemant Bhatt, Jan Cami
We present a comprehensive and sensitive unbiased survey of interstellar features in the near-UV range (3050-3700 Å). We combined a large number of VLT/UVES archival observations o…