AbstractThe nature of the internal thermal X-ray emission seen in “thermal composite” supernova remnants is still uncertain. Chandra observation of the 3C391 shows a southeast–northwest elongated morphology and unveils a highly clumpy structure of the remnant. Detailed spatially resolved spectral analysis for the small-scale features reveals normal metal abundance and uniform temperature for the interior gas. The properties of the hot gas comparatively favor the cloudlet evaporation model as a main mechanism for the “thermal composite” X-ray appearance, though radiative rim and thermal conduction may also be effective. A faint protrusion is found in Si and S lines out of the southwest radio border.


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    Title :

    Highly clumpy structure of the thermal composite supernova remnant 3C 391 unveiled by Chandra


    Contributors:
    Chen, Yang (author) / Su, Yang (author) / Slane, Patrick O. (author) / Wang, Q. Daniel (author)

    Published in:

    Advances in Space Research ; 35 , 6 ; 1007-1011


    Publication date :

    2005-01-05


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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