AbstractThe Lyman Far UltravioletSpectroscopic Explorer mission will obtain high resolution spectra (R∼30,000) in the 912 to 1200 Å region with sufficient sensitivity to study faint sources throughout the galaxy and at large extragalactic distances. This spectral region provides unique tools for solving problems in cosmology (e.g. deuterium), galactic structure and evolution (e.g. O VI and H2), stellar evolution (e.g. O VI), and planetary science (e.g. H2). The transmission of the glancing incidence telescope will enable extension of the spectral coverage with moderate resolution down to 100 Å. The Phase A instrument design consists of a 70 cm Wolter type II telescope feeding either near normal incidence gratings on the Rowland circle for the longer wavelengths or glancing incidence EUV gratings for coverage down to 100 Å. In 1989, NASA selected the mission for Phase B study. Both Canada and the United Kingdom are participating in the definition and development of the mission.


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    Titel :

    The Lyman far ultraviolet spectroscopic explorer


    Beteiligte:
    Moos, Warren (Autor:in)

    Erschienen in:

    Advances in Space Research ; 11 , 11 ; 221-227


    Erscheinungsdatum :

    01.01.1991


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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    The Far Ultraviolet Spectroscopic Explorer Mission

    Sonneborn, G. | British Library Online Contents | 1998