A dataset provided by the European Space Agency

Name 082153
Title Updating scaling relations for low-mass galaxy groups from the PSPC samples


DOI https://doi.org/10.5270/esa-2fcn30u
Author Dr Ming Sun
Description Galaxy groups are ideal systems to study baryonic physics, which is important for both using X-ray observations of clusters for precision cosmology and studying galaxy formation and evolution. Our understanding on the hot gas properties of galaxy groups has been greatly improved with XMM and Chandra. However, limited progress has been made for low-mass groups. In fact, the L-T relations in the literature still use the ROSAT PSPC results for such low-mass groups, even though the PSPC results can be quite uncertain. We have started a project for a complete re-analysis of the kT < 0.6 keV groups from the PSPC samples with XMM and Chandra data. Two groups need new XMM observations, which are requested here. The results will extend important scaling relations to lower mass groups.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2018-07-07T05:46:42Z/2018-07-20T01:13:43Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 2019-08-14T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2019-08-14T22:00:00Z, 082153, 17.56_20190403_1200. https://doi.org/10.5270/esa-2fcn30u