A dataset provided by the European Space Agency

Name 067318
Title Finding low-mass groups to extend the cluster scaling relations


DOI https://doi.org/10.5270/esa-h21lz0o
Author Dr Ming Sun
Description Galaxy groups are ideal systems to study baryon physics, which is important for both using clusters for precision cosmology and understanding galaxy formation and evolution. Over the last decade, our understanding on the ICM properties of galaxy groups has been greatly improved. However, we still know little about low-mass groups with M_{500}<10^13 h^-1 M_sun (or kT < 0.7 keV). Such low-mass groups are the lightest massive halos that can still hold significant amount of baryons. They are the ideal systems to examine the departures of scaling relations from a simple power law that are expected in simulations. This XMM proposal is a first step to select low-mass groups with M_{500}=3 - 10 x 10^12 h^-1 M_sun and the requested data are sufficient for some scaling relations.
Publication No observations found associated with the current proposal
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 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 2013-05-15T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-05-15T00:00:00Z, 067318, 17.56_20190403_1200. https://doi.org/10.5270/esa-h21lz0o