The Wide Field Spectrograph (WiFeS)

By M. Dopita, J. Hart, P. Mcgregor, P. Oates, G. Bloxham, Damien J. Jones. 2007

270 citations recorded by the source corpus.

Abstract This paper describes the Wide Field Spectrograph (WiFeS) under construction at the Research School of Astronomy and Astrophysics (RSAA) of the Australian National University (ANU) for the ANU 2.3 m telescope at the Siding Spring Observatory. WiFeS is a powerful integral field, double-beam, concentric, image-slicing spectrograph designed to deliver excellent throughput, wavelength stability, spectrophotometric performance and superb image quality along with wide spectral coverage throughout the 320–950 nm wavelength region. It provides a 25×38 arcsec field with 0.5 arcsec sampling along each of twenty five 38×1 arcsec slitlets. The output format is optimized to match the 4096×4096 pixel CCD detectors in each of two cameras individually optimized for the blue and the red ends of the spectrum, respectively. A process of “interleaved nod-and-shuffle” will be applied to permit quantum noise-limited sky subtraction. Using VPH gratings, spectral resolutions of 3000 and 7000 are provided. The full spectral range is covered in a single exposure at R=3000, and in two exposures in the R=7000 mode. The use of transmissive coated optics, VPH gratings and optimized mirror coatings ensures a throughput (including telescope atmosphere and detector) >30% over a wide spectral range. The concentric image-slicer design ensures an excellent and uniform image quality across the full field. To maximize scientific return, the whole instrument is configured for remote observing, pipeline data reduction, and the accumulation of calibration image libraries.

Subfields: Atomic and Molecular Physics, and Optics, Instrumentation, Surfaces, Coatings and Films

View Paper: https://www.semanticscholar.org/paper/c996f0f321f5d0d8599ad832f8d68f4bd0b6c707

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In Atomic and Molecular Physics, and Optics

In Instrumentation

Citations in the corpus

The SAMI Galaxy Survey: shocks and outflows in a normal star-forming galaxy (2014, background): “A more comprehensive description of the instrument can be found in Dopita et al. (2007) 3 http://www.aao.gov.au/science/software/2dfdr c© 0000 RAS, MNRAS 000, 000–000 and Dopita et al. (2010).”
GALAXY-WIDE SHOCKS IN LATE-MERGER STAGE LUMINOUS INFRARED GALAXIES (2011, methodology): “WiFeS is a dual beam, image-slicing integral field spectrograph commissioned in May 2009 and described in detail by Dopita et al. (2007) and Dopita et al. (2010).”
HATSouth: A Global Network of Fully Automated Identical Wide-Field Telescopes (2012, methodology): “…follow-up resources (including those with reconnaissance or high precision radial velocity capabilities) are the Wide Field Spectrograph (WiFeS; Dopita et al. 2007) on the ANU 2.3m telescope, FEROS on the MPG/ESO 2.2m telescope, CORALIE on the Euler 1.2m telescope, HARPS on the ESO 3.6m…”
Follow Up of GW170817 and Its Electromagnetic Counterpart by Australian-Led Observing Programmes (2017, background): “It includes the dual-beam, image-slicing, integral-field echelle spectrograph (WiFeS, Dopita et al. 2007) which can simultaneously observe spectra over a 25 arcsec × 38 arcsec field of view.”
The Wide Field Spectrograph (WiFeS): performance and data reduction (2010, methodology): “Figure 10 should be compared with Figure 12 of Dopita et al. (2007).”