| Name | 015065 |
| Title | Towards Understanding Ultraluminous X-ray Sources in Nearby Galaxies |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0150650301 |
| DOI | https://doi.org/10.5270/esa-dp5d79e |
| Author | European Space Agency |
| Description | One of the unsolved questions in contemporary astrophysics is the nature of the bright non-nuclear X-ray sources which appear to surpass by large margins the Eddington luminosity of a stellar-mass compact object. We have recently discovered extended emission nebulae around several ultraluminous sources (ULX) in nearby galaxies which are partly photoionized by their XUV radiation; extent and expansion velocity suggest that these ULX were formed in energetic events some 1E6 years ago. Here we propose to observe a sample of bright ULX in nearby galaxies with the goal to understand their X-ray spectra and to test current ideas of accretion physics in ULX. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-04-30T11:26:56Z/2003-09-11T12:13:52Z |
| 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 | 2004-10-09T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2004, Towards Understanding Ultraluminous X-Ray Sources In Nearby Galaxies, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-dp5d79e |