SIFUS: SOAR integral field unit spectrograph

Jacques R. D. Lepine; Antonio Cesar de Oliveira; Milito Vieira Figueredo; Bruno Vas Castilho; Clemens Gneiding; Beatriz Barbuy; Damien J. Jones; Antonio Kanaan; Claudia Mendes de Oliveira; C. Strauss; Francisco Rodrigues; C. R.G. Andrade; Ligia Souza de Oliveira; J. B. de Oliveira

doi:10.1117/12.461977

7 March 2003 SIFUS: SOAR integral field unit spectrograph

Jacques R. D. Lepine, Antonio Cesar de Oliveira, Milito Vieira Figueredo, Bruno Vas Castilho, Clemens Gneiding, Beatriz Barbuy, Damien J. Jones, Antonio Kanaan, Claudia Mendes de Oliveira, C. Strauss, Francisco Rodrigues, C. R.G. Andrade, Ligia Souza de Oliveira, J. B. de Oliveira

Author Affiliations +

Proceedings Volume 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes; (2003) https://doi.org/10.1117/12.461977
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

We present the project of an optical spectrograph equipped with a 1300-element Integral Field Unit (IFU), that will be one of the main instruments of the SOAR (4m) telescope. The instrument consists of two separate parts, the fore-optics and the bench spectrograph, that are connected by an 11 m long fiber bundle. The fore optics system is installed at one of the Nasmyth focii of the telescope, and produces an image of the observed object on a 26x50 array of square microlenses, each 1 mm x 1 mm lens feeding one fiber. The fibers have 50 micron cores, and are aligned at the entrance of bench spectrograph to form a slit that feeds a 100 mm beam collimator. A set of Volume Phase-Holographic (VPH) transmission gratings can be interchanged by remote control, providing a choice of resolution and wavelength coverage. The spectrograph is tunable over the wavelength range 350 to 1000 nm, with resolution R from about 5000 to 20000. This spectrograph is ideally suited for high spatial resolution studies, with a sampled area of the sky 8" x 15", with 0.30" per microlens, in the mode to be used with the tip-tilt correction of SOAR. The project has been approved at the Project Design Review and the spectrograph is presently being constructed.

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Jacques R. D. Lepine, Antonio Cesar de Oliveira, Milito Vieira Figueredo, Bruno Vas Castilho, Clemens Gneiding, Beatriz Barbuy, Damien J. Jones, Antonio Kanaan, Claudia Mendes de Oliveira, C. Strauss, Francisco Rodrigues, C. R.G. Andrade, Ligia Souza de Oliveira, and J. B. de Oliveira "SIFUS: SOAR integral field unit spectrograph", Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); https://doi.org/10.1117/12.461977

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