Abstract In the field of high resolution solar physics, the french telescope THEMIS is designed to be operated at the Teide Observatory. It is a 90cm polarization-free telescope, with two 7.5m spectrographs, devoted to magnetic field measurements, in a number of simultaneous spectral line profiles. The instrument is under construction. The time schedule aims at operation during the SOHO observations. In addition to this great project, a french spectro-imaging instrument is presently working at the german VTT telescope. Using a Multichannel Subtractive Double Pass (MSDP), it provides simultaneous images in many wavelengths (typically 20), covering two line profiles. The 2D-character is very valuable for coordinated observations with space probes.


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    Titel :

    Current and planned facilities, Canary Islands—France


    Beteiligte:
    Mein, P. (Autor:in) / Rayrole, J. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 11 , 5 ; 151-156


    Erscheinungsdatum :

    01.01.1991


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch