GRS 1758-258: A rare persistent hard state Black Hole

dc.contributor.authorObst, Maria
dc.contributor.authorPottschmidt, Katja
dc.contributor.authorLohfink, A.
dc.contributor.authorWilms, J.
dc.contributor.authorBel, M. Cadolle
dc.contributor.authorSmith, D. M.
dc.contributor.authorTomsick, J. A.
dc.contributor.authorKreykenbohm, I.
dc.contributor.authorRodrigues, B. H.
dc.date.accessioned2023-09-14T20:46:20Z
dc.date.available2023-09-14T20:46:20Z
dc.description.abstractWe present the spectral and timing evolution of GRS 1758-258, one of only three known persistent black hole binaries in our Galaxy, based on 11 years of RXTE-PCA observations. During this time, GRS 1758-258 entered a thermally dominated soft state seven times, showing a strong decline in the 3-20 keV flux rather than an increase. There is only one other source that displays this behavior. In its hardness intensity diagram below 20 keV, GRS 1758-258 shows a hysteresis of hard and soft state fluxes like transient sources in outburst, but with deviations from their typical q-tracks. The spectral flux light curve does not contain any orbital modulations in the range of 1 to 30 days, but in the dynamic power spectrum significant peaks are drifting between 18.47 ± 0.25 and 18.04 ± 0.22 days.en
dc.description.sponsorshipWe thank J.E. Davis for the development of the slxfig module. This work has been partly funded by the EU under contract ITN 215212 “Black Hole Universe”en
dc.description.urihttps://articles.adsabs.harvard.edu/pdf/2013HEAD...1312654Oen
dc.format.extent1 pageen
dc.genrepostersen
dc.identifierdoi:10.13016/m2nxkl-bgf1
dc.identifier.urihttp://hdl.handle.net/11603/29670
dc.language.isoenen
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Physics Department
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.en
dc.titleGRS 1758-258: A rare persistent hard state Black Holeen
dc.title.alternativeGRS 1758-258: Long Term Evolution of a Rare Persistent Hard State Black Holeen
dc.typeTexten
dcterms.creatorhttps://orcid.org/0000-0002-4656-6881en

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