AbstractWe report on the analysis of XMM-Newton archival data of EXO 0748–676. We studied changes of the continuum spectra due to the presence of photo-ionized plasma on the line of sight. We show that the ionization degree of the plasma could change largely during the X-ray bursts and the dips. These changes can significantly modify the soft-band spectrum, which was in fact observed from EXO 0748–676. We discuss the effect of the photo-ionized plasma on the continuum spectra in comparison with a frequently used model such as partial covering absorption.


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    Title :

    Effects of the photo-ionized absorber on the continuum spectra of EXO 0748–676


    Contributors:

    Published in:

    Advances in Space Research ; 38 , 12 ; 2752-2755


    Publication date :

    2006-09-13


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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