| 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 |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2001-04-18T17:50:38Z/2002-06-01T01:38:23Z |
| Version | 17.56_20190403_1200 |
| 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 | 2026-03-04 |
| Keywords | "omega via", "cosmological mass function", "EPIC", "x ray emission", "lensing effects", "z clusters", "redshift galaxy clusters", "relatively massive", "distant cluster candidates", "uhb limits updated", "temperature function", "dovich signal", "fold aproach", "sunyaev zel", "om filters", "density parameter", "$\ omega $." |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr F Jansen, 2003, 'Measuring Omega via. Temperature function of High Z Clusters', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-dy02nkx |