The Eucalyptus spectrograph

Antonio Cesar de Oliveira; Beatriz Barbuy; Rodrigo Prates Campos; Bruno Vas Castilho; Clemens Gneiding; Antonio Kanaan; David Lee; Jacques R. D. Lepine; Claudia Mendes de Oliveira; Ligia Souza de Oliveira; Francisco Rodrigues; J. M. Silva; C. Strauss; Keith Taylor

doi:10.1117/12.461975

7 March 2003 The Eucalyptus spectrograph

Antonio Cesar de Oliveira, Beatriz Barbuy, Rodrigo Prates Campos, Bruno Vas Castilho, Clemens Gneiding, Antonio Kanaan, David Lee, Jacques R. D. Lepine, Claudia Mendes de Oliveira, Ligia Souza de Oliveira, Francisco Rodrigues, J. M. Silva, C. Strauss, Keith Taylor

Author Affiliations +

Proceedings Volume 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes; (2003) https://doi.org/10.1117/12.461975
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

As part of the Brazilian contribution to the 4.2 m SOAR telescope project we are building the Integral Field Unit spectrograph, "SIFUS." With the aim of testing the performance of optical fibers with 50 microns core size on IFUs, we constructed a prototype of the IFU and a spectrograph that were installed at the 1.6 m telescope of the Observatorio do Pico dos Dias (OPD), managed by Laboratorio Nacional de Astrofisica (LNA) in Brazil. The IFU has 512 fibers coupled to a LIMO microlens array (16 x 32) covering a 15" x 30" field on the sky. The spectrograph is a medium resolution instrument, operating in a quasi-Littrow mode. It was based on the design of the SPIRAL spectrograph built by the Anglo-Australian Observatory. The name Eucalyptus was given following the name of the native Australian tree that adapted very well in Brazil and it was given in recognition to the collaboration with the colleagues of the Anglo-Australian Observatory. The instrument first light occurred in the first semester of 2001. The results confirmed the possibility of using the adopted fibers and construction techniques for the SIFUS. We present the features of the instrument, some examples of the scientific data obtained, and the status of the commissioning, calibration and automation plans. The efficiency of this IFU was determined to be 53% during telescope commissioning tests.

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Antonio Cesar de Oliveira, Beatriz Barbuy, Rodrigo Prates Campos, Bruno Vas Castilho, Clemens Gneiding, Antonio Kanaan, David Lee, Jacques R. D. Lepine, Claudia Mendes de Oliveira, Ligia Souza de Oliveira, Francisco Rodrigues, J. M. Silva, C. Strauss, and Keith Taylor "The Eucalyptus spectrograph", Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); https://doi.org/10.1117/12.461975

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