Study of the Large-scale Temperature Structure of the Perseus Cluster with Suzaku

(2)Department of Physics; (3)Kavli Institute for Particle Astrophysics; Cosmology; Hiroshima University; Katsuhiro Hayashi (1); Kazuhiro Nakazawa (2); Sho Nishino (1); Stanford University); Takaaki Tanaka (3) ((1)Department of Physical Science; University of Tokyo

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arxiv 1002.1795 v2 pith:3TW4K3TF submitted 2010-02-09 astro-ph.GA

Study of the Large-scale Temperature Structure of the Perseus Cluster with Suzaku

Sho Nishino (1) , Yasushi Fukazawa (1) , Katsuhiro Hayashi (1) , Kazuhiro Nakazawa (2) , Takaaki Tanaka (3) ((1)Department of Physical Science , Hiroshima University , (2)Department of Physics , University of Tokyo

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(3)Kavli Institute for Particle Astrophysics Cosmology Stanford University)

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We report on a study of the large-scale temperature structure of the Perseus cluster with Suzaku, using the observational data of four pointings of 30' offset regions, together with the data from the central region. Thanks to the Hard X-ray Detector (HXD-PIN: 10 - 60 keV), Suzaku can determine the temperature of hot galaxy clusters. We performed the spectral analysis, by considering the temperature structure and the collimator response of the PIN correctly. As a result, we found that the upper limit of the temperature in the outer region is $\sim$ 14 keV, and an extremely hot gas, which was reported for RXJ 1347.5-1145 and A 3667, was not found in the Perseus cluster. This indicates that the Perseus cluster has not recently experienced a major merger.

Study of the Large-scale Temperature Structure of the Perseus Cluster with Suzaku

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