A dataset provided by the European Space Agency

Name 072189
Title Complete High Precision Study of Galaxy Clusters for Modern Cosmology
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721890101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721890201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721890401
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721890501

DOI https://doi.org/10.5270/esa-2cu6ydi
Author Dr Yu-Ying Zhang
Description We request 109virgulks data for 4 clusters to complete a volume-limited sample of 51
clusters at 0.15<z<0.3. Our investigation of the existing data hints mass
dependence of the systematic biases in the X-ray to weak lensing mass ratios.
The X-ray mass proxies, e.g., Yx, show low scatter against mass, but the
best-fit scaling relations are likely biased by the noted mass-dependence. The
main limitation of our program is that we have not yet observed the full sample,
and thus application of our results to future surveys will be undermined by
inadvertent selection biases. We propose to complete this joint X-ray, lensing,
dynamics, and SZ effect study, testing for mass/radial dependence of the mass
bias. We will deliver definitive constraints on systematics for upcoming cluster cosmology surveys.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2013-07-17T02:49:13Z/2013-12-30T21:52:10Z
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 2015-01-20T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Yu-Ying Zhang, 2015, 072189, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-2cu6ydi