| Name | 001415 |
| Title | ''Fossil Groups.. in the Bright SHARC Survey |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0014150101 |
| DOI | https://doi.org/10.5270/esa-fzx34ef |
| Author | Prof Bob Nichol |
| Description | A ..fossil group. is the proposed end-point of the complete coalescence of a group of galaxies. It is characterised by a single, giant elliptical sitting in an extended X-ray halo and to date, a handful of such systems have been found. However, the exact nature of these systems - how the really formed, their contribution to the mass density of the universe - remains unknown. We propose here XMM EPIC observations towards three new ..fossil groups. detected in the Bright SHARC X-ray survey. These data will allow us to address fundamental questions about this new population of objects e.g. by accurately determining the total masses of these systems and by testing their proposed evolutionary history through the observed structure and metallicity of the gas. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2002-04-23T22:59:15Z/2002-06-04T18:52:35Z |
| 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 | 2003-07-05T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2003-07-05T00:00:00Z, 001415, 17.56_20190403_1200. https://doi.org/10.5270/esa-fzx34ef |