| Name | 067315 |
| Title | Understanding Bias in Mass Selection vs. Baryon Selection of Clusters |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0673150101 |
| DOI | https://doi.org/10.5270/esa-8an2ede |
| Author | European Space Agency |
| Description | Dark matter is the dominant contribution to the matter density in the Universe, but the baryonic component, seen in galaxies and in hot gas, is the most readily studied. For the first time, with the complete spectroscopic survey of 11,692 galaxies in the 9hr Deep Lensing Survey field, clusters can be identified both through the convergence map peaks and through velocity distributions. 20 massive clusters with velocity dispersions >500 km/s and 12 weak lensing peaks have were found in the DLS. We will investigate the bias in mass vs. baryon selections by completing XMM-Newton observations of this sample. For the X-ray brighter clus- ters we will compare the total masses computed from cluster velocity dispersions, from gravitational lensing, and from robust, X-ray measured, mass proxies. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2011-05-17T02:55:22Z/2012-04-20T20:31:26Z |
| 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 | 2013-05-10T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2013, Understanding Bias In Mass Selection Vs. Baryon Selection Of Clusters, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-8an2ede |