MuSICa: The Multi-Slit Image Slicer for the EST Spectrograph

Calcines, A.; López, R. L.; Collados, M.
Referencia bibliográfica

Journal of Astronomical Instrumentation, Volume 2, Issue 1, id. 1350009

Fecha de publicación:
9
2013
Número de autores
3
Número de autores del IAC
3
Número de citas
19
Número de citas referidas
11
Descripción
Integral field spectroscopy (IFS) is a technique that allows one to obtain the spectra of all the points of a bidimensional field of view simultaneously. It is being applied to the new generation of the largest night-time telescopes but it is also an innovative technique for solar physics. This paper presents the design of a new image slicer, MuSICa (Multi-Slit Image slicer based on collimator-Camera), for the integral field spectrograph of the 4-m aperture European Solar Telescope (EST). MuSICa is a multi-slit image slicer that decomposes an 80 arcsec2 field of view into slices of 50 μm and reorganizes it into eight slits of 0.05 arcsec width × 200 arcsec length. It is a telecentric system with an optical quality at diffraction limit compatible with the two modes of operation of the spectrograph: spectroscopic and spectro-polarimetric. This paper shows the requirements, technical characteristics and layout of MuSICa, as well as other studied design options.
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