Taurus tunable filter

A flexible approach to narrowband imaging

Joss Bland-Hawthorn*, D. Heath Jones

*Corresponding author for this work

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

The Taurus Tunable Filter (TTF) is a tunable narrowband interference filter covering wavelengths from 6300 A 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 A. 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.

Original languageEnglish
Pages (from-to)44-49
Number of pages6
JournalPublications of the Astronomical Society of Australia
Volume15
Issue number1
Publication statusPublished - Apr 1998
Externally publishedYes

Keywords

  • Instrumentation: detectors
  • Methods: observational
  • Techniques: interferometric

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