Abstract EXOSAT observations of the 19 Nov 1978 and 25 Mar 1979b gamma bursters are presented, for the 0.02–2.5 keV energy range. No source was detected in either case, leading to temperature upper limits for the neutron stars assumed to be present of 105–106 °K. Polar cap accretion rates are constrained to values of 10−12–10−18 M⊙/y km2. The EXOSAT non-detection of the source discovered by the Einstein satellite in the 19 Nov 1978 error box may be explained if the burster is more distant than about 1.5 kpc.


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    Title :

    EXOSAT observations of two gamma-ray burst sources


    Contributors:
    Boer, M. (author) / Attéia, J.-L. (author) / Hurley, K. (author) / Niel, M. (author) / Barat, C. (author) / Bonnazola, S. (author) / Chevalier, C. (author) / Ilovaisky, S. (author) / Motch, C. (author) / Taylor, B.G. (author)

    Published in:

    Publication date :

    1986-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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