Bibcode
Schmidt, W.; Solanki, S. K.; Schüssler, M.; Curdt, W.; Lites, B. W.; Title, A. M.; Martinez Pillet, V.
Referencia bibliográfica
Astronomische Gesellschaft Abstract Series, Vol. 18., Abstracts of Contributed Talks and Posters presented at the Annual Scientific Meeting of the Astronomische Gesellschaft at the Joint European and National Meeting JENAM 2001 of the European Astronomical Society and the Astronomische Gesellschaft at Munich, September 10-15, 2001, abstract #MS 10 01.
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2001
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Descripción
Sunrise is a 1m balloon-borne solar telescope. It is equipped with a
spectrograph polarimeter which combines vector-polarimetry in the
visible with diagnostic spectroscopy in the visible and the UV, down to
200 nm. The instrumentation includes a filter-magnetograph and a
medium-band filtergraph. The wavelength bands of the latter include the
CH-band (430.6 nm) and a UV continuum at 205 nm. Diffraction limited
resolution in the UV will be achieved by employing a phase diversity
technique. The main telescope is based on a lightweight silicon-carbide
mirror, developed within the Solar Lite program. During the
long-duration flight at Antarctica, foreseen for late 2005, Sunrise will
continuously observe the sun for a period of about ten days, with
constant image quality across the full field of view. In-flight
alignment of the telescope optics will be controlled by a wavefront
sensor. The main goal of Sunrise is to understand the structure and
dynamics of the magnetic field in the atmosphere of the sun. To this
end, Sunrise will observe small magnetic flux concentrations with
dimensions of less than 70 km with high polarimetric accuracy. At the
same time, Sunrise will provide diffraction-limited filtergrams of the
photosphere and chromosphere with a resolution down to 35 km at a
wavelength of 200 nm.