Search results for " line: profiles [X-rays]"

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A complete X-ray spectral coverage of the 2010 May-June outbursts of Circinus X-1

2012

Circinus X-1 is a neutron-star-accreting X-ray binary in a wide (P$_{\rm orb}$ = 16.6 d), eccentric orbit. After two years of relatively low X-ray luminosity, in May 2010 Circinus X-1 went into outburst, reaching 0.4 Crab flux. This outburst lasted for about two orbital cycles and was followed by another shorter and fainter outburst in June. We focus here on the broadband X-ray spectral evolution of the source as it spans about three order of magnitudes in flux. We attempt to relate luminosity, spectral shape, local absorption, and orbital phase. We use multiple Rossi-XTE/PCA (3.0--25 keV) and Swift/XRT (1.0--9.0 keV) observations and a 20 ks long Chandra/HETGS observation (1.0--9.0 keV), t…

PhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Spectral shape analysis010308 nuclear & particles physicsAstrophysics::High Energy Astrophysical PhenomenaX-raybinaries X-rays: individuals: Circinus X-1 accretion accretion disks line: profiles [X-rays]FOS: Physical sciencesAstronomy and AstrophysicsOrbital eccentricityAstrophysicsLight curve01 natural sciencesSpectral evolutionSettore FIS/05 - Astronomia E AstrofisicaAccretion disc13. Climate actionSpace and Planetary Science0103 physical sciencesAstrophysics::Solar and Stellar AstrophysicsCircinusX-rays: binaries X-rays: individuals: Circinus X-1 accretion accretion disks line: profilesAstrophysics - High Energy Astrophysical Phenomena010303 astronomy & astrophysics
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