AbstractWe report the results of an XMM-Newton observation of Sgr A East and its surroundings. The X-ray spectrum of Sgr A East is well represented with a two-temperature plasma model with temperatures of ∼1 and ∼4 keV. Only the iron abundance shows clear spatial variation; it concentrates in the core of Sgr A East. The derived plasma parameters suggest that Sgr A East originated in a single supernova. Around Sgr A East, there is a broad distribution of hard X-ray emission with a superimposed soft excess component extending away from the location of Sgr A East both above and below the plane. We discuss the nature of these structures as well as the close vicinity of Sgr A*.


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    Title :

    Sgr A East and its surroundings observed in X-rays


    Contributors:
    Sakano, M (author) / Warwick, R.S (author) / Decourchelle, A (author)

    Published in:

    Advances in Space Research ; 33 , 4 ; 403-408


    Publication date :

    2003-07-20


    Size :

    6 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Sgr A East and its surroundings observed in X-rays

    Sakano, M. | Online Contents | 2004


    Sgr A East and Its Surroundings Observed in X-Rays

    Sakano, M. / Warwick, R. S. / Decourchelle, A. et al. | British Library Conference Proceedings | 2004



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