| Name | 020240 |
| Title | XMM-NEWTON, RXTE, AND RADIO OBSERVATIONS OF CYGNUS X-1 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0202400101 |
| DOI | https://doi.org/10.5270/esa-9y1jmdu |
| Author | European Space Agency |
| 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 |
| Temporal Coverage | 2004-04-07T14:28:04Z/2004-10-08T05:47:04Z |
| Version | 17.56_20190403_1200 |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2006-10-14T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2006, Xmm-Newton Comma Rxte Comma And Radio Observations Of Cygnus X-1, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-9y1jmdu |