A dataset provided by the European Space Agency

Name 015190
Title GAS DENSITY DISCONTINUITIES IN MERGING CLUSTERS
URL

http://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0151900101

DOI 10.5270/esa-xs6ez9b
Author Dr Maxim Markevitch
Description One of the interesting Chandra discoveries is the existence of sharp gas density edges in some galaxy clusters. There are two different types of such features, depending on the sign of their temperature jump: a contact discontinuity and a merger bow shock. Both phenomena offer unique insights into the cluster physics, including determining the gas bulk velocity, its acceleration, growth of plasma instabilities, strength and structure of magnetic fields, and thermal conductivity. The nearby clusters A3376 and A3158 are striking examples of such edges. We propose to combine the approved Chandra high-resolution imaging with accurate temperature measurements across these edges with EPIC, which will enable a quantitative study of the ICM physics.
Publication HIFLUGCS: Galaxy cluster scaling relations between X-ray luminosity, gas mass, cluster radius, and velocity dispersion . Zhang, Y.-Y., Andernach, H., et all. . A&A . 526-105 . 2011 . 2011A&A...526A.105Z ,
The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue . Watson, M. G., Schroder, A. C., et all. . A&A . 493-339 . 2009 . 2009A&A...493..339W ,
The x-ray luminous galaxy cluster population at 0.9 < z ≲ 1.6 as revealed by the XMM-Newton Distant Cluster Project . Fassbender, R., Bohringer, H., et all. . NJPh . 13-125014 . 2011 . 2011NJPh...13l5014F ,
Statistical evaluation of the flux cross-calibration of the XMM-Newton EPIC cameras . Mateos, S., Saxton, R. D., et all. . A&A . 496-879 . 2009 . 2009A&A...496..879M ,
Planck early results. XI. Calibration of the local galaxy cluster Sunyaev-Zeldovich scaling relations . Planck Collaboration, Ade, P. A. R., et all. . A&A . 536-11 . 2011 . 2011A&A...536A..11P ,
The Swift Burst Alert Telescope Perspective on Non-thermal Emission in HIFLUGCS Galaxy Clusters . Wik, Daniel R., Sarazin, Craig L., et all. . ApJ . 748-67 . 2012 . 2012ApJ...748...67W ,
The XMM Cluster Survey: optical analysis methodology and the first data release . Mehrtens, Nicola, Romer, A. Kathy, et all. . MNRAS . 423-1024 . 2012 . 2012MNRAS.423.1024M ,
An All-Sky Atlas of Radio-X-ray Associations . Flesch, E., ...
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-04-01T07:43:17Z/2003-04-01T20:50:03Z
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 2004-04-25T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2004-04-25T00:00:00Z, 015190, 17.56_20190403_1200. https://doi.org/10.5270/esa-xs6ez9b