Skip to Main content Skip to Navigation
Journal articles

Image Slicer Performances from a Demonstrator for the SNAP/JDEM Mission

Abstract : A space-adapted visible and infrared spectrograph has been developed for the SNAP (SuperNova/Acceleration Probe) experiment proposed for JDEM. The instrument should have a high sensitivity to see faint supernovae, but also a good redshift determination better than 0.003(1+z), and a precise spectrophotometry (2%). An instrument based on an integral-field method with the powerful concept of imager slicing has been designed. A large prototyping effort has been performed in France that validates the concept. In particular, a demonstrator reproducing the full optical configuration has been built and tested to prove the optical performance both in the visible and in the near-infrared range. This article, the first of two, focuses on wavelength measurement, while the second article will report on spectrophotometric performance. We address here the spectral accuracy expected both in the visible and in the near-infrared range in such a configuration, and we demonstrate, in particular, that the image slicer enhances the instrumental performances in the spectral measurement precision by removing the slit effect.
Mots-clés : Data Analysis Techniques
Complete list of metadatas

http://hal.in2p3.fr/in2p3-00390975
Contributor : Danielle Cristofol <>
Submitted on : Wednesday, June 3, 2009 - 1:37:46 PM
Last modification on : Thursday, July 25, 2019 - 4:34:12 PM

Links full text

Identifiers

Collections

Citation

M.-H. Aumeunier, A. Ealet, E. Prieto, C. Cerna. Image Slicer Performances from a Demonstrator for the SNAP/JDEM Mission. Astronomical Society of the Pacific, 2009, 121, pp.396-407. ⟨10.1086/598803⟩. ⟨in2p3-00390975⟩

Share

Metrics

Record views

166