| Proposal ID | 067318 |
| Title | Finding low-mass groups to extend the cluster scaling relations |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0673180201 |
| DOI | https://doi.org/10.5270/esa-h21lz0o |
| Principal Investigator, PI | Dr Ming Sun |
| Abstract | Galaxy groups are ideal systems to study baryon physics, which is important forboth using clusters for precision cosmology and understanding galaxy formationand evolution. Over the last decade, our understanding on the ICM properties ofgalaxy groups has been greatly improved. However, we still know little aboutlow-mass groups with M_{500}<10^13 h^-1 M_sun (or kT < 0.7 keV). Such low-massgroups are the lightest massive halos that can still hold significant amount ofbaryons. They are the ideal systems to examine the departures of scalingrelations from a simple power law that are expected in simulations. This XMMproposal is a first step to select low-mass groups with M_{500}=3 - 10 x 10^12h^-1 M_sun and the requested data are sufficient for some scaling relations. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2011-10-14T20:29:23Z/2012-04-27T13:55:00Z |
| 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 | 2013-05-15T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "greatly improved", "simple power law", "finding low mass", "precision cosmology", "scaling relations", "cluster scaling relations", "requested data", "galaxy formation", "ideal systems", "baryon physics", "select low mass", "low mass", "XMM", "icm properties", "lightest massive halos" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Ming Sun, 2013, 'Finding low-mass groups to extend the cluster scaling relations', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-h21lz0o |