Joint XMM-Newton/Chandra/RXTE Observations of Dips in Cyg X-1

Details Joint XMM-Newton/Chandra/RXTE Observations of Dips in Cyg X-1 Joint XMM-Newton/Chandra/RXTE Observations of Dips in Cyg X-1

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2301w&link_type=abstract

Chandra Proposal ID #09400002

Computer Science

Chandra Proposal Id #09400002

Scientific paper

At phase 0, Cyg X-1 shows pronounced soft X-ray dips due to highly variable, partial blockage from the accretion stream. Studying these dips requires joint XMM/Chandra/RXTE observations: XMM will provide the continuum through the broad Fe line region (allowing a clean separation of the line into narrow and relativistically broadened components), and it will achieve higher S/N than Chandra at < 2keV, allowing the dipping events to be temporally resolved and spectrally modeled on short time scales. (RGS will have better spectral resolution than HETGS when both are binned to equal S/N on short time scales.) The Chandra data will provide high resolution spectroscopy of the dipping events, while RXTE - available via our ongoing monitoring campaign - will provide the hard X-ray continuum.

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