The broad band spectrum of CYG X-1

  • S. Fritz
  • , J. Wilms
  • , K. Pottschmidt
  • , M. A. Nowak
  • , I. Kreykenbohm
  • , A. Santangelo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

We present first results on INTEGRAL and RXTE from our multi-mission observing campaign on Cygnus X-1. The black hole binary Cyg X-1 has been observed simultaneously by INTEGRAL, RXTE, and XMM-Newton for four times in 2004 November and December, when Cyg X-1 became first observable with XMM-Newton (see contribution by Wilms. et al., these proceedings). One of the scientific aims of this campaign was the measurement of a high signal to noise spectrum of Cyg X-1 from 2.5 keV to >600keV in order to constrain models for the hard spectral component We show here first results of our ongoing analysis obtained by modeling the broad band spectrum with simple empirical models as well as with Comptonization models.

Original languageEnglish
Title of host publicationX-ray Universe 2005
Pages267-268
Number of pages2
Edition604
StatePublished - 2006
EventX-ray Universe 2005 - Madrid, Spain
Duration: Sep 26 2005Sep 30 2005

Publication series

NameEuropean Space Agency, (Special Publication) ESA SP
Number604
Volume1
ISSN (Print)0379-6566

Conference

ConferenceX-ray Universe 2005
Country/TerritorySpain
CityMadrid
Period09/26/0509/30/05

Keywords

  • Cyg X-1
  • Interacting Binaries

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