|Title||XMM-NEWTON, RXTE, AND RADIO OBSERVATIONS OF CYGNUS X-1|
|Author||Dr JON MILLER|
|Description||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.|
|Publication||No observations found associated with the current proposal|
|Instrument||EPN, OM, RGS1, RGS2|
|Mission Description||The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2006-10-14T00:00:00Z, 020240, 17.56_20190403_1200. https://doi.org/10.5270/esa-9y1jmdu|