Proposal ID | 015345 |
Title | Testing the Cooling Flow-Galactic Wind Paradigm in Early-type Galaxies |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0153450101 |
DOI | https://doi.org/10.5270/esa-cuv79ib |
Principal Investigator, PI | Dr Jimmy Irwin |
Abstract | Hydrodynamical simulations of the hot gas in elliptical galaxies make strongpredictions on the shape of the temperature and surface brightness profiles ofthe gas depending on if the gas is cooling and flowing inward or flowing out ofthe galaxy in a wind. X-ray bright galaxies (believed to be in a cooling inflowphase) are well-described by the models. However, to date galaxies likely to bein the outflow phase have been poorly studied due to very low X-ray count rates.Here, we propose an EPIC-pn observation of the prototypical X-ray faint galaxyNGC~4697 to derive the temperature profile of the gas for the first time in anX-ray faint galaxy. The shape of the temperature profile will strictly test thevalidity of the current cooling flow-galactic outflow paradigm in galaxies. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2003-07-09T09:06:04Z/2003-07-10T03:16:03Z |
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 | 2006-02-11T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "strictly test", "elliptical galaxy", "EPIC", "flowing inward", "xray bright galaxy", "temperature profile", "date galaxy", "epic pn", "hot gas", "gas depending", "NGC", "outflow phase", "type galaxy", "cooling inflow phase", "surface brightness profiles", "xray faint galaxy", "hydrodynamical simulations" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Jimmy Irwin, 2006, 'Testing the Cooling Flow-Galactic Wind Paradigm in Early-type Galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-cuv79ib |