The X-ray luminosity-velocity dispersion relation in the REFLEX cluster survey
نویسندگان
چکیده
منابع مشابه
The REFLEX Galaxy Cluster Survey IV: The X-ray Luminosity Function
The X-ray galaxy cluster sample from the REFLEX Cluster Survey, which covers the X-ray brightest galaxy clusters detected in the ROSAT All-Sky Survey in the southern sky, is used to construct the X-ray luminosity function of clusters in the local Universe. With 452 clusters detected above an X-ray flux-limit of 3 · 10 erg s cm in 4.24 sr of the sky, this sample is the most comprehensive X-ray c...
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We present here initial results on the X–ray Cluster Luminosity Function (XCLF) from the Bright SHARC sample of distant X–ray clusters of galaxies. This sample is 97% complete in its optical identifications and contains 12 X–ray luminous clusters in the redshift range 0.3 ≤ z ≤ 0.83 (median z = 0.42) and 1.1 ≤ Lx ≤ 8.5 × 10 erg s−1 [0.5–2.0 keV]. We present a preliminary selection function for ...
متن کاملCluster X - ray Luminosity Evolution
Whether the X-ray luminosities of clusters of galaxies evolve has been a contentious issue for over ten years. However, the data available to addresss this issue have improved dramatically as cluster surveys from the ROSAT archive near completion. There are now three samples of nearby clusters and seven distant cluster samples. We present a uniform analysis of four of the distant cluster sample...
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The physical processes that define the spine of the galaxy cluster X-ray luminosity–temperature (L–T) relation are investigated using a large hydrodynamical simulation of the universe. This simulation models the same volume and phases as the millennium simulation and has a linear extent of 500 h Mpc. We demonstrate that mergers typically boost a cluster along but also slightly below the L–T rel...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2004
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2004.07371.x