| Proposal ID | 050432 |
| Title | Velocity Tomography of the Intracluster Gas with XMM |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0504320101 |
| DOI | https://doi.org/10.5270/esa-7kfjlo5 |
| Principal Investigator, PI | Dr Renato Dupke |
| Abstract | We have recently found evidence of supersonic bulk velocities in the ICM of A576&/ A376. The dependence of these measurements on the gain stability of thespectrometers makes the confirmation of these results crucial. Such high gasvelocities have a strong impact on our understanding of formation and evolutionof clusters and also in determining basic physical characteristics such asgravitating mass and energetics. Given the high magnitude of the velocitygradient and its spatial extent, XMM provides a unique opportunity tocorroborate and improve such measurements. The excellent gain stability ofEPIC-MOS will allows us to tailor the observation for velocity studies reducingindividual velocity errors to ~ 400--800 km/s, with relatively short exposures. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2007-10-20T21:57:18Z/2007-10-29T12:36:53Z |
| Version | 21.51_20241115_1113 |
| 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 | 2009-01-20T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "gain stability", "a576 &/ a376", "relatively short", "spectrometers makes", "intracluster gas", "velocity gradient", "gravitating mass", "gas velocities", "velocity tomography", "EPIC", "supersonic bulk velocities", "XMM", "epic mos", "spatial extent" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Renato Dupke, 2009, 'Velocity Tomography of the Intracluster Gas with XMM', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-7kfjlo5 |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |