| Proposal ID | 065353 |
| Title | Probing with X-rays the mass distribution in the lensing cluster A1703 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0653530101 |
| DOI | https://doi.org/10.5270/esa-mfmswmh |
| Principal Investigator, PI | Dr Fabio Gastaldello |
| Abstract | We propose a 52 ks observation of the lensing, X-ray luminous cluster A 1703 toconstrain its total and hot gas mass profile. A 1703 is an unusually relaxedcluster at z=0.28 and provides a special opportunity to study its mass profileby applying hydrostatic equilibrium. The XMM observation will be crucial for asecure determination of its relaxed dynamical state and an accurate measurementof its mass and NFW concentration parameter, not constrained by the stronglensing analysis. Given the still debated issue of very high concentrationsfound for some massive lensing clusters, by obtaining high quality X-ray datafor a potentially well relaxed cluster we will perform a key test for the LambdaCDM scenario of structure formation. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2010-05-27T15:07:23Z/2010-07-12T16:53:17Z |
| 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 | 2011-08-03T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "relaxed dynamical", "xray luminous cluster", "relaxed cluster", "lambda cdm scenario", "massive lensing clusters", "mass distribution", "quality xray data", "key test", "structure formation", "lensing analysis", "nfw concentration parameter", "XMM", "lensing cluster a1703", "mass profile", "applying hydrostatic equilibrium" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Fabio Gastaldello, 2011, 'Probing with X-rays the mass distribution in the lensing cluster A1703', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-mfmswmh |