SIMBAD references

2009MNRAS.392..251H - Mon. Not. R. Astron. Soc., 392, 251-263 (2009/January-1)

Spectral variability in Cygnus X-3.

HJALMARSDOTTER L., ZDZIARSKI A.A., SZOSTEK A. and HANNIKAINEN D.C.

Abstract (from CDS):

We model the broad-band X-ray spectrum of Cyg X-3 in all states displayed by this source as observed by the Rossi X-ray Timing Explorer. From our models, we derive for the first time unabsorbed spectral shapes and luminosities for the full range of spectral states. We interpret the unabsorbed spectra in terms of Comptonization by a hybrid electron distribution and strong Compton reflection. We study the spectral evolution and compare with other black hole as well as neutron star sources. We show that a neutron star accretor is not consistent with the spectral evolution as a function of LE and especially not with the transition to a hard state. Our results point to the compact object in Cyg X-3 being a massive, ∼30M black hole.

Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): radiation mechanisms: non-thermal - stars: individual: Cyg X-3 - gamma-rays: observations - X-rays: binaries - X-rays: general - X-rays: stars

Status at CDS:  

Simbad objects: 12

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2020.05.27-17:57:56

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