| Name | 009362 |
| Title | FROM THE CLUSTER TEMPERATURE FUNCTION TO THE MASS FUNCTION AT LOW Z |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0093620101 |
| DOI | https://doi.org/10.5270/esa-pofj5yw |
| Author | Dr Maxim Markevitch |
| Description | The cluster mass function is a direct and sensitive cosmological probe. At present, however, a direct derivation of the mass function is impossible, at least at low redshifts. Thus a convenient proxy, the temperature function, is used for cosmological studies, involving a rather uncertain temperature-mass conversion. This conversion must be calibrated, and XMM is perfectly suited for this task. We propose to measure the gas temperature distribution in three nearby, relatively relaxed clusters spanning a range of temperatures from 4 to 10 keV: A133, A1650 and Triangulum Australis. These observations will provide highly accurate mass values within r_500. Together some nearby relaxed clusters already in the program, these systems will establish the M-T relation at low z |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2001-02-17T13:51:06Z/2001-03-02T02:46:24Z |
| 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 | 2003-01-06T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2003-01-06T00:00:00Z, 009362, 17.56_20190403_1200. https://doi.org/10.5270/esa-pofj5yw |