The first map of O VI lambda 1035 emission of the Cygnus Loop has now been obtained with Voyager. The first good spectra of the sub-Lyman-alpha region in the Cygnus Loop and in the Large Magellanic Cloud (LMC) remnant N49 have been obtained with the Hopkins Ultraviolet Telescope. The lines detected below 1200 A include S VI lambda lambda 933,945, C III lambda 977, N III lambda 991, and O VI lambda lambda 1032,1038. The O VI luminosities of the Cygnus Loop and of N49 exceed their soft X-ray luminosities. There is O VI emission at the primary shock front in the Cygnus Loop and from the bright optical filaments. The HUT spectra of the Cygnus Loop can be interpreted in terms of shocks with velocities of 170-190 km/s; the differences between the two spectra are due to the time since the beginning of the shock-cloud encounter.


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    Titel :

    Sub-Lyman-alpha observations of supernova remnants


    Beteiligte:
    Long, K. S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.12.1993



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Sub-Lyman- Observations of Supernova Remnants

    Long, K. S. / COSPAR | British Library Conference Proceedings | 1993


    Sub-Lyman-a Observations of Supernova Remnants

    Long, K.S. | Online Contents | 1993



    IUE observations of supernova remnants

    Raymond, J. C. | NTRS | 1982


    IUE observations of supernova remnants

    Raymond, J.C. | Elsevier | 1982