In this paper, we present a concept for an active, 6-meter space telescope (6MST) for space-based general astrophysics and consider its potential for coronagraphy. The telescope operates in spectral regions from about 100nm up to $\boldsymbol{2}\upmu\mathrm{m}$, thus having the range comparable to Large Ultraviolet Optical Infrared Surveyor (LUVOIR) and Habitable Exoplanet Observatory (HabEx) in the longer wavelength end. In this paper, we produce the design for a vector-vortex coronagraph instrument for exoplanet work. We evaluate the impact of Primary Mirror (PM) segment gaps on the 20% broadband contrast floor when a charge 4 or charge 6 vortex mask and two $\boldsymbol{64}\mathrm{x}\boldsymbol{64}$ actuators sequential Deformable Mirrors (DM's) are used in the coronagraph, and compare the performance of a Lyot-mask and a pupil apodization mask relative to one another.


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    Titel :

    Design of Vector-Vortex Coronagraphs for Exoplanet Science using a Six Meter Space Telescope


    Beteiligte:
    Sidick, Erkin (Autor:in) / Dube, Brandon D. (Autor:in) / Jewell, Jeffrey (Autor:in) / Martin, Stefan (Autor:in) / Serabyn, Eugene (Autor:in) / Redding, David C. (Autor:in) / Green, Joseph J. (Autor:in) / Warfield, Keith R. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    04.03.2023


    Format / Umfang :

    2451693 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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