A dataset provided by the European Space Agency

Name 020567
Title COSMOLOGY WITH A SECOND SUNYAEV-ZEL.DOVICH EFFECT CLUSTER AT Z
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0205670101

DOI https://doi.org/10.5270/esa-ndofawr
Author Dr DIANA WORRALL
Description Sensitive XMM-Newton observations of the luminous Sunyaev-Zel.dovich effect
cluster CL 0016+16 (z=0.55) have led to considerably improved measurements of
distance, gas-mass fraction, and Hubble constant, for a cluster at a redshift
where curvature of the angular-diameter/redshift relation is particularly
evident. We propose a deep observation of the cluster.s twin, MS 0451.6-0305, to
allow similar measurements for this second cluster. Averaging results for the
two clusters will alleviate the potential problem of systematic errors in the
distance estimate arising from projection effects. The results will also test
the suggestion that the baryonic mass fraction in MS 0451.6-0305 is anomalously
low, at only about a third the value seen in CL 0016+16.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2004-09-16T23:52:02Z/2004-09-17T12:13:48Z
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 2005-10-08T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr DIANA WORRALL, 2005, 020567, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ndofawr