| Proposal ID | 069319 |
| Title | The Dark Matter and Baryon Content of a Sample of Isolated Elliptical Galaxies |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0693190101 |
| DOI | https://doi.org/10.5270/esa-647lut4 |
| Principal Investigator, PI | Prof David Buote |
| Abstract | The mass profiles of elliptical galaxies are important probes of galaxyformation and cosmology. Only a few elliptical galaxies have detailed massmeasurements from X-rays because of the lack of suitable targets in terms oftotal mass (< ~10^{13} m_sun) and relaxed dynamical states appropriate forhydrostatic analysis. We have identified a sample of 10 (hot) gas-rich isolatedelliptical galaxies well-suited for X-ray studies of mass profiles on the galaxyscale. We request deep XMM observations to map the detailed profiles of stars,dark matter, and hot gas for the 5 systems in the sample lacking high-qualityXMM data. This sample will serve as a benchmark laboratory for hydrostaticstudies of the hot gas in isolated elliptical galaxies. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2012-06-08T17:26:53Z/2013-03-27T21:29:30Z |
| 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 | 2014-04-06T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "XMM", "benchmark laboratory", "suitable targets", "mass measurements", "hydrostatic analysis", "dark matter", "isolated elliptical galaxy", "deep xmm", "galaxy formation", "hot gas", "sample lacking", "total mass", "quality xmm data", "mass profiles", "relaxed dynamical", "galaxy scale", "elliptical galaxy", "baryon content" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof David Buote, 2014, 'The Dark Matter and Baryon Content of a Sample of Isolated Elliptical Galaxies', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-647lut4 |