| Proposal ID | 020320 |
| Title | HI-DEFICIENT COMPACT GALAXY GROUPS |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0203200101 |
| DOI | https://doi.org/10.5270/esa-uff11ds |
| Principal Investigator, PI | Prof TREVOR PONMAN |
| Abstract | It now seems that the morphology-density relation is established by processesoperating within groups, and only subsequently incorporated into clusters. Therecent discovery that the HI-deficiency observed in galaxies within compactgroups is related to the presence of a hot intergalactic medium, offers a clueto the processes involved in the transformation of the galaxy population. Wepropose to image a set of HI-deficient groups with XMM and Chandra, to comparethe X-ray morphology with the HI distribution mapped by the VLA. This willenable us to discriminate between ram pressure stripping, tidal stripping andstarburst mechanisms for the removal of gas from galaxies. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2004-07-03T02:53:11Z/2004-07-03T07:34:58Z |
| 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 | 2005-08-15T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "hi distribution mapped", "processes operating", "subsequently incorporated", "galaxy population", "ram pressure", "hot intergalactic medium", "hi deficiency", "morphology density relation", "XMM", "hi deficient", "starburst mechanisms", "processes involved", "xray morphology" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof TREVOR PONMAN, 2005, 'HI-DEFICIENT COMPACT GALAXY GROUPS', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-uff11ds |