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An Integral Field Spectrograph for SNAP Supernova Identification

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arxiv astro-ph/0210087 v1 pith:SISUO4WQ submitted 2002-10-03 astro-ph

A. Ealet , E. Prieto (for the SNAP collaboration) This is my paper
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keywords conceptspectrographbeenfieldidentificationintegralsnapsupernova
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A well-adapted spectrograph concept has been developed for the SNAP (SuperNova/Acceleration Probe) experiment. The goal is to ensure proper identification of Type Ia supernovae and to standardize the magnitude of each candidate by determining explosion parameters. An instrument based on an integral field method with the powerful concept of imager slicing has been designed and is presented in this paper. The spectrograph concept is optimized to have very high efficiency and low spectral resolution (R~100), constant through the wavelength range (0.35-1.7 microns), adapted to the scientific goals of the mission.

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