| Proposal ID | 065124 |
| Title | Turbulence in galaxy clusters - a new capability for the RGS |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0651240101 |
| DOI | https://doi.org/10.5270/esa-setp9os |
| Principal Investigator, PI | Dr Jeremy Sanders |
| Abstract | We propose to observe five moderate redshift cool core clusters to takeadvantage of a recently confirmed capability of the RGS instruments, to measureor place limits on the amount of turbulence in cluster cores. Our targets havebright cores and are at moderate redshift, so the degree of spatial broadeningon the spectra will be low, and we will be able to measure or place tight limitson the velocity broadening in each object (less than 300 km/s). We will be ableto place limits of 9--16 per cent on the fraction of turbulent pressure of thetotal pressure. An important secondary objective will be to study AGN feedbackin luminous cluster cores. We will be able to determine whether AGN feedbackmatches cooling to better than 10 per cent. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2010-05-20T07:41:12Z/2010-08-04T13:13:27Z |
| 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 | 2011-08-21T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "moderate redshift", "velocity broadening", "turbulent pressure", "luminous cluster cores", "total pressure", "tight limits", "galaxy cluster", "secondary objective", "cluster cores", "rgs instruments", "spatial broadening", "bright cores", "agn feedback" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Jeremy Sanders, 2011, 'Turbulence in galaxy clusters - a new capability for the RGS', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-setp9os |