180 citations · 1k across the 18 of their papers we have counts for
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Cygnus X-1: shedding light on the spectral variability of a black hole
V. Grinberg, N. Hell, J. Wilms +17
The knowledge of the spectral state of a black hole is essential for the interpretation of data from black holes in terms of their emission models. Based on pointed observations of…
Understanding the Last Mile - Physics of the Accretion Column
Peter Kretschmar, Peter A. Becker, Dipankar Bhattacharya +17
Accreting X-ray pulsars are among the best observed objects of X-ray astronomy with a rich data set of observational phenomena in the spectral and timing domain. While the general…
The Be/X-ray binary A0535+26 during its recent 2009/2010 outbursts
I. Caballero, K. Pottschmidt, A. Santangelo +20
The Be/X-ray binary A0535+26 showed a giant outburst in December 2009 that reached ~5.14 Crab in the 15-50 keV range. Unfortunately, due to Sun constraints it could not be observed…
Is There a Dark Matter Signal in the Galactic Positron Annihilation Radiation?
R. E. Lingenfelter, J. C. Higdon, R. E. Rothschild
Assuming Galactic positrons do not go far before annhilating, a difference between the observed 511 keV annihilation flux distribution and that of positron production, expected fro…
Stellar-Mass Black Holes and Their Progenitors
J. M. Miller, P. Uttley, K. Nandra +14
If a black hole has a low spin value, it must double its mass to reach a high spin parameter. Although this is easily accomplished through mergers or accretion in the case of super…