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Taurus Tunable Filter: A Flexible Approach to Narrowband Imaging

Published online by Cambridge University Press:  05 March 2013

Joss Bland-Hawthorn  and
D. Heath Jones
Joss Bland-Hawthorn
Affiliation:
Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia; jbh@aaossz.aao.gov.au
D. Heath Jones
Affiliation:
Mount Stromlo & Siding Spring Observatories, Private Bag, Weston Creek PO, ACT 2611, Australia
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Abstract

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The Taurus Tunable Filter (TTF) is a tunable narrowband interference filter covering wavelengths from 6300 Å to the sensitivity drop-off of conventional CCDs (∼9600 Å), although a blue ‘arm’ (4000–6500 Å) is to be added by the end of 1997. The TTF offers monochromatic imaging at the Cassegrain foci of both the Anglo-Australian and William Herschel Telescopes, with an adjustable passband of between 6 and 60 Å. In addition, frequency switching with the TTF can be synchronised with movement of charge (charge shuffling) on the CCD, which has important applications to many astrophysical problems. Here we review the different modes of TTF and suggest their use for follow-up narrowband imaging to the AAO/UKST Galactic Plane Hα Survey.

Keywords

instrumentation: detectorsmethods: observationaltechniques: interferometric
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 15 , Issue 1 , 1998 , pp. 44 - 49
Copyright
Copyright © Astronomical Society of Australia 1998

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