A dataset provided by the European Space Agency

Name 040117
Title Probing the M_xray - M_weaklens Relation for Shear-Selected Galaxy Clusters
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0401170101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0401170201

DOI https://doi.org/10.5270/esa-ex0umsg
Author Ms Neelima Sehgal
Description For the first time we have a sample of galaxy clusters of significant size (> 20
clusters) selected on the basis of their weak lensing shear through the Deep
Lens Survey (DLS). We have obtained an initial look at our highest shear ranked
cluster, A781, and 3 surrounding clusters with XMM-Newton and Chandra, and from
this obtained temperature estimates but were unable to constrain their masses.
We request deeper XMM and Chandra observations to obtain better mass estimates
to 1.) understand the robustness of weak lensing masses and the biases inherent
in shear-selected cluster samples, 2.) determine whether M_xray/M_weaklens is a
universal diagnostic of cluster dynamical state, and 3.) characterize one of our
clusters which has an x-ray but no shear signal.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2007-04-14T01:00:36Z/2007-04-15T01:52:58Z
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 2008-05-31T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Ms Neelima Sehgal, 2008, 040117, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ex0umsg