| Proposal ID | 010786 |
| Title | Measuring Omega via. Temperature function of High Z Clusters |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0107860101 |
| DOI | https://doi.org/10.5270/esa-dy02nkx |
| Principal Investigator, PI | Dr F Jansen |
| Abstract | The goal of our project is to quantify the number of massive, high--redshiftgalaxy clusters, with the aim of constraining the density parameter of theUniverse by employing the extreme sensitivity of the high--mass end of thecosmological mass function to $Omega$. For that purpose, we propose a two-foldaproach: 1) measure the temperature of a sample of known high--$z$ ($0.4 < z<0.7$) clusters detected in the SHARC X--ray survey, and 2) search for theX--ray emission associated with more distant cluster candidates ($z>1$)thought to be relatively massive due to either their lensing effects or theirSunyaev--Zeldovich signal. This proposal is a collaboration between EPIC, SOC and SSC. OM filters to be changed if UHB limits updated. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2001-04-18T17:50:38Z/2002-06-01T01:38:23Z |
| Version | 21.51_20241115_1113 |
| Mission Description | The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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 | 2003-06-29T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "uhb limits updated", "cosmological mass function", "sunyaev zel", "omega via", "temperature function", "lensing effects", "relatively massive", "redshift galaxy clusters", "EPIC", "$\ omega $.", "x ray emission", "om filters", "fold aproach", "z clusters", "distant cluster candidates", "dovich signal", "density parameter" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr F Jansen, 2003, 'Measuring Omega via. Temperature function of High Z Clusters', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-dy02nkx |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |