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Proceedings Paper

The Oxford SWIFT integral field spectrograph
Author(s): Niranjan Thatte; Matthias Tecza; Fraser Clarke; Timothy Goodsall; James Lynn; David Freeman; Roger L. Davies
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Paper Abstract

We present the design of the Oxford SWIFT integral field spectrograph, a dedicated I and z band instrument (0.65μm micron - 1.0μm micron at R~4000), designed to be used in conjunction with the Palomar laser guide star adaptive optics system (PALAO, and its planned upgrade PALM-3000). It builds on two recent developments (i) the improved ability of second generation adaptive optics systems to correct for atmospheric turbulence at wavelengths less than or equal to 1μm micron, and (ii) the availability of CCD array detectors with high quantum efficiency at very red wavelengths (close to the silicon band edge). Combining these with a state-of-the-art integral field unit design using an all-glass image slicer, SWIFT's design provides very high throughput and low scattered light. SWIFT simultaneously provides spectra of ~4000 spatial elements, arranged in a rectangular field-of-view of 44 × 89 pixels. It has three on-the-fly selectable pixel scales of 0.24", 0.16" and 0.08'. First light is expected in spring 2008.

Paper Details

Date Published: 29 June 2006
PDF: 12 pages
Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 62693L (29 June 2006); doi: 10.1117/12.670859
Show Author Affiliations
Niranjan Thatte, Univ. of Oxford (United Kingdom)
Matthias Tecza, Univ. of Oxford (United Kingdom)
Fraser Clarke, Univ. of Oxford (United Kingdom)
Timothy Goodsall, Univ. of Oxford (United Kingdom)
James Lynn, Univ. of Oxford (United Kingdom)
David Freeman, Univ. of Oxford (United Kingdom)
Roger L. Davies, Univ. of Oxford (United Kingdom)

Published in SPIE Proceedings Vol. 6269:
Ground-based and Airborne Instrumentation for Astronomy
Ian S. McLean; Masanori Iye, Editor(s)

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