Correlated Radio-X-Ray Variability of Galactic Black Holes: A Radio-X-Ray Flare in Cygnus X-1

dc.contributor.authorWilms, Jörn
dc.contributor.authorPottschmidt, Katja
dc.contributor.authorPooley, Guy G.
dc.contributor.authorMarkoff, Sera
dc.contributor.authorNowak, Michael A.
dc.contributor.authorKreykenbohm, Ingo
dc.contributor.authorRothschild, Richard E.
dc.date.accessioned2023-10-05T23:44:19Z
dc.date.available2023-10-05T23:44:19Z
dc.date.issued2007-06-22
dc.description.abstractWe report on the first detection of a quasi-simultaneous radio-X-ray flare of Cygnus X-1. The detection was made on 2005 April 16 with pointed observations by the RXTE and the Ryle telescope, during a phase where the black hole candidate was close to a transition from its soft state to its hard state. The radio flare lagged the X-rays by ~7 minutes, peaking at 3:20 hr barycentric time (TDB 2,453,476.63864). We discuss this lag in the context of models explaining such flaring events as the ejection of electron bubbles emitting synchrotron radiation.en
dc.description.sponsorshipWe acknowledge the support of NASA contract NAS5-30720, NASA grant NNG05GK55G, and a travel grant from the Deutscher Akademischer Austauschdienst. We thank the RXTE schedulers for their efforts in making the simultaneous radio–X-ray observations possible and the Aspen Center for Physics for its hospitality during the early stages of the preparation of this manuscript.en
dc.description.urihttps://iopscience.iop.org/article/10.1086/520508en
dc.format.extent4 pagesen
dc.genrejournal articlesen
dc.identifierdoi:10.13016/m2ipi2-nlg1
dc.identifier.citationWilms, Jörn, Katja Pottschmidt, Guy G. Pooley, Sera Markoff, Michael A. Nowak, Ingo Kreykenbohm, and Richard E. Rothschild. “Correlated Radio-X-Ray Variability of Galactic Black Holes: A Radio-X-Ray Flare in Cygnus X-1.” The Astrophysical Journal 663, no. 2 (June 22, 2007): L97. https://doi.org/10.1086/520508.en
dc.identifier.urihttps://doi.org/10.1086/520508
dc.identifier.urihttp://hdl.handle.net/11603/30001
dc.language.isoenen
dc.publisherIOP Publishingen
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
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.titleCorrelated Radio-X-Ray Variability of Galactic Black Holes: A Radio-X-Ray Flare in Cygnus X-1en
dc.typeTexten
dcterms.creatorhttps://orcid.org/0000-0002-4656-6881en

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