Search results for "Lyman-alpha line"

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Spectral Analysis of LMC X-2 with XMM-Newton: Unveiling the Emission Process in the Extragalactic Z-source

2008

We present the results of the analysis of an archival observation of LMC X-2 performed with XMM/Newton. The spectra taken by high-precision instruments have never been analyzed before. We find an X-ray position for the source that is inconsistent with the one obtained by ROSAT, but in agreement with the Einstein position and that of the optical counterpart. The correlated spectral and timing behaviour of the source suggests that the source is probably in the normal branch of its X-ray color-color diagram. The spectrum of the source can be fitted with a blackbody with a temperature 1.5 keV plus a disk blackbody at 0.8 keV. Photoelectric absorption from neutral matter has an equivalent hydrog…

PhysicsAstrophysics::High Energy Astrophysical PhenomenaAstrophysics (astro-ph)FOS: Physical sciencesAstronomy and AstrophysicsLyman-alpha lineAstrophysicsAstrophysicsSpectral lineBoundary layerSettore FIS/05 - Astronomia E AstrofisicaSpace and Planetary SciencePosition (vector)ROSATbinaries accretion accretion disks line: identification stars: neutron [X-rays]Black-body radiationEmission spectrumLarge Magellanic CloudX-rays: binaries accretion accretion disks line: identification stars: neutronAstrophysics::Galaxy Astrophysics

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PEPhysical Sciences and Engineering
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