INTEGRAL-RXTE observations of Cygnus X-1

Simple item page
dc.contributor.authorPottschmidt, Katja
dc.contributor.authorWilms, J.
dc.contributor.authorChernyakova, M.
dc.contributor.authorNowak, M. A.
dc.contributor.authorRodriguez, J.
dc.contributor.authorZdziarski, A. A.
dc.contributor.authorBeckmann, V.
dc.contributor.authorKretschmar, P.
dc.contributor.authorGleissner, T.
dc.contributor.authorPooley, G. G.
dc.contributor.authorMartínez-Núñez, S.
dc.contributor.authorCourvoisier, T. J.-L.
dc.contributor.authorSchönfelder, V.
dc.contributor.authorStaubert, R.
dc.date.accessioned2023-10-12T21:50:43Z
dc.date.available2023-10-12T21:50:43Z
dc.date.issued2003-11-17
dc.description.abstractWe present first results from contemporaneous observations of Cygnus X-1 with INTEGRAL and RXTE, made during INTEGRAL’s performance verification phase in 2002 November and December. Consistent with earlier results, the 3−250 keV data are well described by Comptonization spectra from a Compton corona with a temperature of kT ∼ 50−90 keV and an optical depth of τ ∼ 1.0−1.3 plus reflection from a cold or mildly ionized slab with a covering factor of Ω/2π ∼ 0.2−0.3. A soft excess below 10 keV, interpreted as emission from the accretion disk, is seen to decrease during the 1.5 months spanned by our observations. Our results indicate a remarkable consistency among the independently calibrated detectors, with the remaining issues being mainly related to the flux calibration of INTEGRAL.en_US
dc.description.sponsorshipThis work has been financed by Deutsches Zentrum f¨ur Luft- und Raumfahrt grants 50 OG 95030 and 50 OG 9601, Deutsche Forschungsgemeinschaft grant Sta 173/25-3, National Science Foundation grant INT-0233441, National Aeronautics and Space Administration grant NAS8-01129, Deutscher Akademischer Austauschdienst grant D/0247203, KBN grants 5P03D00821, 2P03C00619p1,2, and PBZ-054/P03/2001, as well as the French Space Agency (CNES) and the Foundation for Polish Science. We thank all people involved in building and calibrating INTEGRAL for their efforts, and E. Smith and J. Swank for the very smooth scheduling of the RXTE observations. We would also like to thank Paolo Coppi, the referee, for helpful suggestions.en_US
dc.description.urihttps://www.aanda.org/articles/aa/abs/2003/43/aaINTEGRAL26/aaINTEGRAL26.htmlen_US
dc.format.extent6 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2e3kk-8ory
dc.identifier.citationPottschmidt, K., J. Wilms, M. Chernyakova, M. A. Nowak, J. Rodriguez, A. A. Zdziarski, V. Beckmann, et al. “INTEGRAL-RXTE Observations of Cygnus X-1.” Astronomy & Astrophysics 411, no. 1 (November 1, 2003): L383–88. https://doi.org/10.1051/0004-6361:20031258.en_US
dc.identifier.urihttps://doi.org/10.1051/0004-6361:20031258
dc.identifier.urihttp://hdl.handle.net/11603/30127
dc.language.isoen_USen_US
dc.publisherEDP Sciencesen_US
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_US
dc.rightsAttribution 4.0 International (CC BY 4.0)*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.titleINTEGRAL-RXTE observations of Cygnus X-1en_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0002-4656-6881en_US

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
aaINTEGRAL26.pdf
Size:
344.37 KB
Format:
Adobe Portable Document Format
Description:
Download

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
2.56 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
UMBC Physics Department