We propose five 10 ksec observations of Cyg X-1. We will use the RGS to studythe orbital variations of the focused stellar wind of Cyg X-1 using absorptionedge and line measurements for the five random orbital phases of theobservations, and complement these with optical spectroscopy. By modifying thelow energy threshold of the EPIC-pn to 2.2keV, we are able to accomodate thetelemetry limitations of XMM and observe the source in the timing mode of EPICpn. This change allows us to obtain a very high signal to noise CCD-resolutionspectrum of Cyg X-1, to measure energy resolved power spectra, time lags, andother timing quantities out to 100Hz, and interpret them with emission modelsfor black holes.
Instrument
EPN, OM, RGS1, RGS2
Temporal Coverage
2004-11-14T22:05:56Z/2004-12-03T00:05:48Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
European Space Agency, Dr JOERN WILMS, 2005, 'XMM-NEWTON OBSERVATIONS OF CYG X-1', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-yau6s0j
