A dataset provided by the European Space Agency

Proposal ID 020075
Title MODERATE REDSHIFT GROUPS OF GALAXIES
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DOI https://doi.org/10.5270/esa-120k85h
Principal Investigator, PI Dr JOHN MULCHAEY
Abstract We propose to continue our successful XMM-Newton program to measure theproperties of the intragroup medium in a sample of galaxy groups at moderateredshifts. Previously, we have observed groups at z=0.2. Here, we propose toextend our study to higher redshifts by observing four X-ray bright groups inthe redshift range z=0.31 to z=0.45. We will combine the new XMM observationswith our existing HST imaging and groundbased spectroscopy to: 1) measure theevolution of metallicity of the intragroup medium from z=0 to nearly z=0.5; 2)determine if the correlations between X-ray properties and morphological contenthold at moderate redshifts; and 3) determine the masses and baryon fractions ofintermediate redshift groups.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-01-30T17:15:09Z/2004-10-01T15:48:19Z
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 2005-11-06T00:00:00Z
Keywords "groundbased spectroscopy", "xray properties", "XMM", "intermediate redshift", "intragroup medium", "redshift range z", "existing hst imaging", "morphological content hold", "XMM-Newton", "moderate redshift", "xray bright", "baryon fractions", "nearly z", "HST", "moderate redshifts"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr JOHN MULCHAEY, 2005, 'MODERATE REDSHIFT GROUPS OF GALAXIES', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-120k85h