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Proceedings Paper

BATMAN: a DMD-based multi-object spectrograph on Galileo telescope
Author(s): Frederic Zamkotsian; Paolo Spano; Patrick Lanzoni; Harald Ramarijaona; Manuele Moschetti; Marco Riva; William Bon; Luciano Nicastro; Emilio Molinari; Rosario Cosentino; Adriano Ghedina; Manuel Gonzalez; Paolo Di Marcantonio; Igor Coretti; Roberto Cirami; Filippo Zerbi; Luca Valenziano
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Paper Abstract

Next-generation infrared astronomical instrumentation for ground-based and space telescopes could be based on MOEMS programmable slit masks for multi-object spectroscopy (MOS). This astronomical technique is used extensively to investigate the formation and evolution of galaxies. We are developing a 2048x1080 Digital-Micromirror-Device-based (DMD) MOS instrument to be mounted on the Galileo telescope and called BATMAN. A two-arm instrument has been designed for providing in parallel imaging and spectroscopic capabilities. The field of view (FOV) is 6.8 arcmin x 3.6 arcmin with a plate scale of 0.2 arcsec per micromirror. The wavelength range is in the visible and the spectral resolution is R=560 for 1 arcsec object (typical slit size). The two arms will have 2k x 4k CCD detectors. ROBIN, a BATMAN demonstrator, has been designed, realized and integrated. It permits to determine the instrument integration procedure, including optics and mechanics integration, alignment procedure and optical quality. First images and spectra have been obtained and measured: typical spot diameters are within 1.5 detector pixels, and spectra generated by one micro-mirror slits are displayed with this optical quality over the whole visible wavelength range. Observation strategies are studied and demonstrated for the scientific optimization strategy over the whole FOV. BATMAN on the sky is of prime importance for characterizing the actual performance of this new family of MOS instruments, as well as investigating the operational procedures on astronomical objects. This instrument will be placed on the Telescopio Nazionale Galileo mid-2015.

Paper Details

Date Published: 24 July 2014
PDF: 12 pages
Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 914713 (24 July 2014); doi: 10.1117/12.2055192
Show Author Affiliations
Frederic Zamkotsian, Lab. d'Astrophysique de Marseille, CNRS (France)
Paolo Spano, INAF - Osservatorio Astronomico di Brera (Italy)
Patrick Lanzoni, Lab. d'Astrophysique de Marseille, CNRS (France)
Harald Ramarijaona, Lab. d'Astrophysique de Marseille, CNRS (France)
Manuele Moschetti, INAF - Osservatorio Astronomico di Brera (Italy)
Marco Riva, INAF - Osservatorio Astronomico di Brera (Italy)
William Bon, Lab. d'Astrophysique de Marseille, CNRS (France)
Luciano Nicastro, INAF - IASF Bologna (Italy)
Emilio Molinari, INAF - Telescopio Nazionale Galileo (Spain)
Rosario Cosentino, INAF - Telescopio Nazionale Galileo (Spain)
Adriano Ghedina, INAF - Telescopio Nazionale Galileo (Spain)
Manuel Gonzalez, INAF - Telescopio Nazionale Galileo (Spain)
Paolo Di Marcantonio, INAF - Osservatorio Astronomico di Trieste (Italy)
Igor Coretti, INAF - Osservatorio Astronomico di Trieste (Italy)
Roberto Cirami, INAF - Osservatorio Astronomico di Trieste (Italy)
Filippo Zerbi, INAF - Osservatorio Astronomico di Brera (Italy)
Luca Valenziano, INAF - IASF Bologna (Italy)


Published in SPIE Proceedings Vol. 9147:
Ground-based and Airborne Instrumentation for Astronomy V
Suzanne K. Ramsay; Ian S. McLean; Hideki Takami, Editor(s)

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