On the outburst evolution of H1743-322: a 2008-2009 comparison - Astrophysics > High Energy Astrophysical PhenomenaReport as inadecuate




On the outburst evolution of H1743-322: a 2008-2009 comparison - Astrophysics > High Energy Astrophysical Phenomena - Download this document for free, or read online. Document in PDF available to download.

Abstract: We present two observational campaigns performed with the RXTE satellite onthe black hole transient H 1743-322. The source was observed in outburst on twoseparate occasions between October-November 2008 and May-July 2009. We havecarried out timing and spectral analysis of the data set, obtaining a completestate classification of all the observations. We find that all the observationsare well described by using a spectral model consisting of a disk-blackbody, apowerlaw + reflection + absorption and a gaussian emission component. Duringthe 2009 outburst the system followed the canonical evolution through all thestates seen in black hole transients. In the 2008 outburst only the hard stateswere reached. The early evolution of the spectral parameters is consistentbetween the two epochs, and it does not provide clues about the subsequentbehavior of the source. The variation of the flux associated to the two mainspectral components i.e. disk and powerlaw allows us to set a lower limit tothe orbital inclination of the system of >= 43{\deg}.



Author: S.Motta, T.Muñoz-Darias, T.Belloni

Source: https://arxiv.org/







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