The region of the LMC containing SN 1987A was observed during a balloon flight of a hard-X-ray telescope on April 8-10, 1988. Significant continuum emission was detected in the 45-400-keV range and attributed to SN 1987A. Compared to an observation with the same instrument in October 1987, the source intensity decreased by about 50 percent, while the spectral shape remained qualitatively the same. This may represent the first clear indication that the hard-X-ray emission is entering the declining phase expected as the ejecta become optically thin to the Co-56 gamma rays.


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    Titel :

    Balloon-borne hard X-ray observations of SN 1987A


    Beteiligte:
    Fishman, G. J. (Autor:in) / Wilson, R. B. (Autor:in) / Meegan, C. A. (Autor:in) / Paciesas, W. S. (Autor:in) / Pendleton, G. N. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1990-01-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Balloon-borne hard x-ray observations of SN 1987A

    Fishman, G.J. / Wilson, R.B. / Paciesas, W.S. et al. | Elsevier | 1989


    HEROES Balloon-Borne Hard X-Ray Telescope

    C. A. Wilson-Hodge / J. Gaskin / D. W. Stuchlik et al. | NTIS | 2014


    Chandra observations of SNR 1987A

    Park, S. | Online Contents | 2004


    Hard X-rays from supernova 1987A

    Sunyaev, R.A. / Efremov, V. / Kaniovsky, A. et al. | Elsevier | 1989


    Upper-air Balloon-borne Observations in Portugal

    Nunes, L. F. / European Space Agency / Centre National d'Etudes Spatiales | British Library Conference Proceedings | 2001