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UHRF: spectral resolution to the limit

DIEGO, F; CRAWFORD, IA; BARLOW, MJ; FISH, AC; DRYBURGH, M; BROOKS, D; SPYROMILIO, J; ... WALKER, DD; + view all (1994) UHRF: spectral resolution to the limit. In: Crawford, DL and Craine, ER, (eds.) Proceedings SPIE Volume 2198, Instrumentation in Astronomy VIII, (1 June 1994). (pp. pp. 274-288). SPIE: Kailua, Kona, HI, United States. Green open access

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Abstract

Until recently the study of cool clouds of interstellar matter had been limited by the relatively low spectral resolutions provided by existing spectrographs. The Ultra-High-Resolution Facility (UHRF) recently commissioned at the Anglo-Australian Telescope has changed dramatically this panorama by delivering for the first time resolutions approaching one million, near the diffraction limit of the largest echelle gratings available. The instrument shares the east coude room with the University College London Echelle Spectrograph, in what is now one of the most powerful spectrographic installations worldwide. This contribution describes the characteristics of the UHRF, including its design, manufacture, testing, and commissioning. The UHRF incorporates a novel image slicer (described elsewhere in these proceedings), which allows ultra-high-resolution observations on faint objects. Astrophysical results from the first observing runs are presented to demonstrate the UHRF performance in both resolution and throughput.

Type: Proceedings paper
Title: UHRF: spectral resolution to the limit
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994
Location: KONA, HI
Dates: 13 March 1994 - 14 March 1994
ISBN: 0-8194-1493-X
Open access status: An open access version is available from UCL Discovery
DOI: 10.1117/12.176704
Publisher version: https://doi.org/10.1117/12.176704
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/10096174
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