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22 papers · 1 filter
Deflagration to Detonation Transition in Thermonuclear Supernovae
A. M. Khokhlov, E. S. Oran, J. Craig Wheeler
We derive the criteria for deflagration to detonation transition (DDT) in a Type Ia supernova. The theory is based on the two major assumptions: (i) detonation is triggered via the…
Cygnus X-3 in outburst : quenched radio emission, radiation losses and variable local opacity
R. P. Fender, S. J. Bell Burnell, E. B. Waltman +3
We present multiwavelength observations of Cygnus X-3 during an extended outburst in 1994 February - March. Intensive radio monitoring at 13.3, 3.6 & 2.0 cm is complemented by obse…
X-rays and gamma-rays from accretion flows onto black holes in Seyferts and X-ray binaries
Andrzej A. Zdziarski, W. Neil Johnson, Juri Poutanen +2
We review observations and theoretical models of X-ray/gamma-ray spectra of radio-quiet Seyfert galaxies and of Galactic black-hole candidates (in the hard spectral state). The obs…
Reformulation of the LDA+U method for a local orbital basis
W. E. Pickett, S. C. Erwin, E. C. Ethridge
We present a new approach to the evaluation of the on-site repulsion energy U for use in the LDA+U method of Anisimov and collaborators. Our objectives are to make the method more…
Monitoring the Gamma-Ray Source 2CG 135+1 and the Radio Star LSI+61 303
M. Tavani, W. Hermsen, R. van Dijk +8
We report the results of a CGRO multi-instrument series of observations of the unidentified gamma-ray source 2CG 135+1 and of its possible counterpart, the peculiar radio source GT…
Spallation of Iron in Black Hole Accretion Flows
Jeff Skibo
In the local Galactic interstellar medium there is approximate energy equipartition between cosmic rays, magnetic fields and radiation. If this holds in the central regions of AGN,…