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arXiv · 1808.07939

BTFI2: a simple, light and compact Fabry-Perot instrument for the SOAR telescope

Abstract

We present the concept of a new Fabry-Perot instrument called BTFI-2, which is based on the design of another Brazilian instrument for the SOAR Telescope, the Brazilian Tunable Filter Imager (BTFI). BTFI-2 is designed to be mounted on the visitor port of the SOAR Adaptive Module (SAM) facility, on the SOAR telescope, at Cerro Pach\'on, Chile. This optical Fabry-Perot instrument will have a field of view of 3 x 3 arcmin, with 0.12 arcsec per pixel and spectral resolutions of 4500 and 12000, at H-alpha, dictated by the two ICOS Fabry-Perot devices available. The instrument will be unique for the study of centers of normal, interacting and active galaxies and the intergalactic medium, whenever spatial resolution over a large area is required. BTFI-2 will combine the best features of two previous instruments, SAM-FP and BTFI: it will use an Electron Multiplication detector for low and fast scanning, it will be built with the possibility of using a new Fabry-Perot etalon which provides a range of resolutions and it will be light enough to work attached to SAM, and hence the output data cubes will be GLAO-corrected.

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Bruno Correa Quint, Brian Chinn, Claudia Mendes de Oliveira, Philippe Amram, Denis Andrade, William Schoenell, Daniel Moser Faes. 2018-08-23. BTFI2: a simple, light and compact Fabry-Perot instrument for the SOAR telescope. https://doi.org/10.1117/12.2313397

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