| Name | 040621 |
| Title | The X-ray properties of optically-selected clusters at z > 0.6 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0406210101 |
| DOI | https://doi.org/10.5270/esa-bbkkg65 |
| Author | Dr Olivia Johnson |
| Description | The ESO Distant Cluster Survey (EDisCS) comprises an extremely well-studied sample of optically-selected cluster fields, including eight spectroscopically-confirmed clusters at z > 0.6 for which velocity dispersions and weak lensing maps have already been derived. We have studied three fields with XMM to date and here propose a completion of the sample. The proposed observations will allow us to: i) significantly expand the high-redshift L_X - sigma and T - sigma relations; ii)study the X-ray properties of the progenitors of typical present-day clusters; iii) examine the inherent biases in X-ray-selected high-redshift cluster surveys; and iv) test the validity of various mass estimation methods at high redshift. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2006-07-21T02:54:33Z/2006-12-02T00:34:36Z |
| 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 | 2008-01-04T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2008-01-04T00:00:00Z, 040621, 17.56_20190403_1200. https://doi.org/10.5270/esa-bbkkg65 |