361 citations
- Center for Astrophysics Harvard & SmithsonianUS46 papers
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- Ames Research CenterUS36 papers
- Princeton UniversityUS36 papers
- Vanderbilt UniversityUS33 papers
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- California Institute of TechnologyUS29 papers
- American Institute of Aeronautics and AstronauticsUS28 papers
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- Centre National de la Recherche ScientifiqueFR24 papers
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9 papers · 1 filter
Permutation Entropy and Statistical Complexity Analysis of Turbulence in Laboratory Plasmas and the Solar Wind
Peter J. Weck, David A. Schaffner, Michael R. Brown +1
The Bandt-Pompe permutation entropy and the Jensen-Shannon statistical complexity are used to analyze fluctuating time series of three different plasmas: the magnetohydrodynamic (M…
Random strings and tt-degrees of Turing complete C.E. sets
Mingzhong Cai, Rodney G Downey, Rachel Epstein +2
We investigate the truth-table degrees of (co-)c.e.\ sets, in particular, sets of random strings. It is known that the set of random strings with respect to any universal prefix-fr…
Measuring the shock-heating rate in the winds of O stars using X-ray line spectra
David H. Cohen, Zequn Li, Kenneth G. Gayley +4
We present a new method for using measured X-ray emission line fluxes from O stars to determine the shock-heating rate due to instabilities in their radiation-driven winds. The hig…
Misaligned Protoplanetary Disks in a Young Binary System
Eric L. N. Jensen, Rachel Akeson
Many extrasolar planets follow orbits that differ from the nearly coplanar and circular orbits found in our solar system; orbits may be eccentric or inclined with respect to the ho…
Spectral Brilliance of Channeling Radiation at the ASTA Photoinjector
Tanaji Sen, Christopher Lynn
We study channeling radiation from electron beams with energies under 100 MeV. We introduce a phenomenological model of dechanneling, correct non-radiative transition rates from th…
Toward Complete Statistics of Massive Binary Stars: Penultimate Results from the Cygnus OB2 Radial Velocity Survey
Henry A. Kobulnicky, Daniel C. Kiminki, Michael J. Lundquist +12
We analyze orbital solutions for 48 massive multiple-star systems in the Cygnus OB2 Association, 23 of which are newly presented here, to find that the observed distribution of orb…