A dataset provided by the European Space Agency

Name 060350
Title Virgo Clusters At Redshift 0.35: Probing the Cluster-Group Transition


DOI https://doi.org/10.5270/esa-ejklyqb
Author Prof Megan Donahue
Description The cluster X-ray luminosity-temperature (L-T) relationship is sensitive to cooling and feedback processes. Because L and T are used as surrogates for the cluster virial mass M in cosmological studies, understanding the L-T and the L-T-M relations-including scatter and its evolution, is critical for cluster constraints on cosmological models, as well as models of galaxy and cluster evolution. We propose to measure T and L for a representative sample of 13 low luminosity, low-T (2-2.6 keV) clusters of galaxies at moderate redshift (z=0.32 -0.37), from the ROSAT 160SD survey. We will study the L-T-M relation for 6 clusters with weak lensing masses obtained with HST. This study spans the mass range between rich clusters and groups, where feedback becomes important.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2010-01-06T18:55:23Z/2010-04-23T21:49:54Z
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 2011-05-13T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2011-05-13T00:00:00Z, 060350, 17.56_20190403_1200. https://doi.org/10.5270/esa-ejklyqb