The complex X-ray spectrum of the isolated neutron star RBS1223

dc.creatorSchwope, Axel D.
dc.creatorHambaryan, Valeri
dc.creatorHaberl, Frank
dc.creatorMotch, Christian
dc.date2006-09-26
dc.date.accessioned2026-07-07T10:40:16Z
dc.date.available2026-07-07T10:40:16Z
dc.descriptionWe present a first analysis of a deep X-ray spectrum of the isolated neutron star RBS1223 obtained with XMM-Newton. Spectral data from four new monitoring observations in 2005/2006 were combined with archival observations obtained in 2003 and 2004 to form a spin-phase averaged spectrum containing 290000 EPIC-pn photons. This spectrum shows higher complexity than its predecessors, and can be parameterised with two Gaussian absorption lines superimposed on a blackbody. The line centers, E_2 ~ 2E_1, could be regarded as supporting the cyclotron interpretation of the absorption features in a field B ~ 4 x 10**13 G. The flux ratio of those lines does not support this interpretation. Hence, either feature might be of truly atomic origin.
dc.description4 pages, 1 figure, to appear in Astrophysics and Space Science, in the proceedings of "Isolated Neutron Stars: from the Interior to the Surface", edited by D. Page, R. Turolla and S. Zane
dc.identifierhttps://arxiv.org/abs/astro-ph/0609705
dc.identifierhttp://arxiv.org/abs/astro-ph/0609705
dc.identifierAstrophys.SpaceSci.308:619-623,2007
dc.identifierdoi:10.1007/s10509-007-9375-1
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181288
dc.subjectAstrophysics
dc.titleThe complex X-ray spectrum of the isolated neutron star RBS1223
dc.typetext

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