ASCA Observations of the Abell 496 Cluster of Galaxies
نویسندگان
چکیده
منابع مشابه
A photometric catalogue of galaxies in the cluster Abell 496 . ⋆ ⋆ ⋆
We present two catalogues of galaxies in the direction of the rich cluster ABCG 496. The first one includes 3,879 galaxies located in a region of roughly ± 1.3◦ from the cluster centre. It has been obtained from a list of more than 35,000 galaxy candidates detected by scanning part of a Schmidt photographic plate taken in the bJ band. Positions are very accurate in this catalogue but magnitudes...
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Abell 115 exhibits two distinct peaks in the surface brightness distribution. ASCA observation shows a significant temperature variation in this cluster, confirmed by a hardness ratio analysis and spectral fits. A linking region between main and sub clusters shows a high temperature compared with other regions. Two possibilities are examined as the cause of the temperature variation: cooling fl...
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We present preliminary results of imaging and spectral analysis of the cluster A496 with the S3 chip on-board the Chandra satellite. We confirm the presence of a cooling flow and radial gradients in elemental abundances. The cluster’s core has clear signs of substructures (sharp edges, cavities), similar to those recently found in other cooling flow clusters. The O/Fe ratio distribution indicat...
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The results obtained from the ASCA observations of the cluster of galaxies Abell 3627 are presented. This cluster, located behind the Milky way, was recently found to be a nearby, X-ray bright and very rich cluster. Pointed observations onto the central region of the cluster gave a gas temperature of ∼ 7 keV and a metallicity of about 0.2 solar. An offset pointing to a substructure elongated to...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1998
ISSN: 0074-1809
DOI: 10.1017/s0074180900115268