Computer Science
Scientific paper
Mar 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop..127m&link_type=abstract
XMM-Newton Proposal ID #02024003
Computer Science
Cygnus X-1, Cygnus X-1, Cygnus X-1, Xmm-Newton Proposal 02024003
Scientific paper
Cygnus X-1 is visible for 7 ksec of each revolution in April-May 2004. We request 70 ksec to acquire 10 consecutive exposures of Cygnus X-1 during this window. We have an approved RXTE program for the sole purpose of observing simultaneously with our proposed XMM-Newton program, and we will make simultaneous radio observations with Ryle. We will constrain: the spin of the black hole via Fe K-alpha line spectroscopy, the nature of the companion wind, the validity of ADAF models for Cygnus X-1, the role of the jet in producing the hard flux and in the larger reflection geometry, and how parameters depend on the 5.6-day orbital period of Cygnus X-1.
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