| Proposal ID | 088081 |
| Title | The cooling rate and velocity dispersion in the cool core cluster RXJ0821 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0880810101 |
| DOI | https://doi.org/10.57780/esa-g0jui0b |
| Principal Investigator, PI | Prof Andrew Fabian |
| Abstract | We propose to observe a cool core cluster of modest X-ray luminosity which hasover 10^10 Msun of cold molecular gas in its X-ray cool core. ALMA data indicatethat the cold gas is exceptionally disturbed and situated 5 kpc from thenucleus. If, as Hitomi has shown in the Perseus cluster, the cold gas and ICMshare the same velocity field, then we shall measure velocity broadening of theX-ray emission lines with the XMM RGS. Star formation of about 40 Msunpyr isinferred from optical and IR data and a central cooling time of less than 5x10^6yr. A cooling flow at that rate will be detectable. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-10-13T09:13:32Z/2021-10-22T05:32:35Z |
| Version | PPS_NOT_AVAILABLE |
| 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 | 2022-12-21T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "xray cool core", "central cooling time", "velocity broadening", "icm share", "velocity dispersion", "cold molecular gas", "perseus cluster", "alma data", "ir data", "xmm rgs", "velocity field", "cool core cluster", "star formation", "xray emission lines", "cooling flow", "cooling rate", "modest xray luminosity", "cold gas", "XMM" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Andrew Fabian, 2022, 'The cooling rate and velocity dispersion in the cool core cluster RXJ0821', PPS_NOT_AVAILABLE, European Space Agency, https://doi.org/10.57780/esa-g0jui0b |