AbstractThe error box of GRB980425 has been observed by XMM-Newton in March 2002, with the aim of measuring the late epoch X-ray emission of the supernova 1998bw and of clarifying its supposed association with the GRB itself. We present here the preliminary results obtained with the EPIC PN camera. Our observations confirm the association between SN 1998bw and GRB980425. The EPIC PN measurement of the SN 1998bw flux is significantly below the extrapolation of the power-law temporal trend fitted to the BeppoSAX points and implies a faster temporal decay. We propose different physical interpretations of the SN X-ray light curve, according to whether it is produced by one or more radiation components.


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    Title :

    XMM-Newton observations of the field of γ-ray burst 980425


    Contributors:
    Pian, E. (author) / Giommi, P. (author) / Amati, L. (author) / Costa, E. (author) / Danziger, J. (author) / Feroci, M. (author) / Fiocchi, M.T. (author) / Frontera, F. (author) / Kouveliotou, C. (author) / Masetti, N. (author)

    Published in:

    Advances in Space Research ; 34 , 12 ; 2711-2714


    Publication date :

    2003-04-20


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    XMM-Newton Observations of the Field of gamma-Ray Burst 980425

    Pian, E. / Giommi, P. / Amati, L. et al. | British Library Conference Proceedings | 2004


    GRB 980425, SN1998BW and the EMBH Model

    Ruffini, R. / Bernardini, M. G. / Bianco, C. L. et al. | British Library Conference Proceedings | 2004


    GRB 980425, SN1998BW and the EMBH model

    Ruffini, R. / Bernardini, M.G. / Bianco, C.L. et al. | Elsevier | 2003


    GRB 980425, SN1998BW and the EMBH model

    Ruffini, R. | Online Contents | 2004