Ultraviolet spectra of supernova remnants obtained with the IUE satellite provide unique information concerning the shock conditions and elemental abundances in the optically bright filaments. High temperature species such as N V provide diagnostics for shock velocities above 100 k/s, and strong lines of carbon and silicon in the IUE spectral range make it possible to study the destruction of refractory grains in shocked interstellar gas. Observations of a nonradiative shock at the edge of the Cygnus Loop provide constraints on the physics of the shock front itself. Most of the very young remnants whose optical spectra show anomalous elemental abundances are too highly reddened for IUE observations, but extensive observations of the Crab Nebula and a spectrum of the supernova remnant in NGC 4449 yield carbon to oxygen ratios from which the mass of the progenitor may be estimated.


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    Title :

    IUE observations of supernova remnants


    Contributors:

    Publication date :

    1982-01-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    BBXRT Observations of Supernova Remnants

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    Raymond, J.C. | Elsevier | 1982



    BBXRT observations of supernova remnants

    Petre, R. / Serlemitsos, P. / Marshall, F. et al. | NTRS | 1993


    BBXRT observations of supernova remnants

    Petre, R. / Serlemitsos, P. / Marshall, F. et al. | Elsevier | 1993