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The Oxford SWIFT Spectrograph: first commissioning and on-sky results

Thatte, Niranjan and Tecza, Mathias and Clarke, Fraser and Goodsall, Timothy and Fogarty, Lisa and Houghton, Ryan and Salter, Graeme and Scott, Nicholas and Davies, Roger L. and Bouchez, Antonin and Dekany, Richard (2010) The Oxford SWIFT Spectrograph: first commissioning and on-sky results. In: Ground-based and Airborne Instrumentation for Astronomy III. Proceedings of SPIE. No.7735. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 77357Y. ISBN 9780819482259.

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The Oxford SWIFT spectrograph, an I & z band (6500-10500 A) integral field spectrograph, is designed to operate as a facility instrument at the 200 inch Hale Telescope on Palomar Mountain, in conjunction with the Palomar laser guide star adaptive optics system PALAO (and its upgrade to PALM3000). SWIFT provides spectra at R(≡λ/▵λ)~4000 of a contiguous two-dimensional field, 44 x 89 spatial pixels (spaxels) in size, at spatial scales of 0.235";, 0.16", and 0.08" per spaxel. It employs two 250μm thick, fully depleted, extremely red sensitive 4k X 2k CCD detector arrays (manufactured by LBNL) that provide excellent quantum efficiency out to 1000 nm. We describe the commissioning observations and present the measured values of a number of instrument parameters. We also present some first science results that give a taste of the range of science programs where SWIFT can have a substantial impact.

Item Type:Book Section
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Davies, Roger L.0000-0002-3324-4824
Additional Information:© 2010 SPIE The International Society for Optical Engineering. The SWIFT team would like to express their sincere gratitude to the Palomar Observatory staff, in particular Steve Kunsman, Mike Doyle, Greg van Idsigna, John Henning and Dan McKenna for their generous help during the installation, commissioning and subsequent operations of the SWIFT spectrograph. We would also like to thank Anna Moore for constructing a foam mock-up of SWIFT several years prior to commissioning, to verify interfaces. The Oxford SWIFT integral field spectrograph is directly supported by a Marie Curie Excellence Grant from the European Commission (MEXT-CT-2003-002792, Team Leader: N. Thatte). It is also supported by additional funds from the University of Oxford Physics Department and the John Fell OUP Research Fund. Additional funds to host and support SWIFT at the 200-inch Hale Telescope on Palomar are provided by Caltech Optical Observatories. L. Fogarty would like to acknowledge generous support from the Foley-Béjar Scholarship through Balliol College, Oxford and the support of the STFC. Based on observations obtained at the Hale Telescope, Palomar Observatory, as part of a collaborative agreement between the California Institute of Technology, its divisions Caltech Optical Observatories and the Jet Propulsion Laboratory (operated for NASA), and Cornell University.
Funding AgencyGrant Number
Marie Curie FellowshipMEXT-CT-2003-002792
University of OxfordUNSPECIFIED
John Fell OUP Research FundUNSPECIFIED
Caltech Optical ObservatoriesUNSPECIFIED
Balliol CollegeUNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
Subject Keywords:integral field; spectrograph; fully depleted, thick CCDs; adaptive optics; image slicer; laser guide star
Series Name:Proceedings of SPIE
Issue or Number:7735
Record Number:CaltechAUTHORS:20161101-151910949
Persistent URL:
Official Citation:Niranjan Thatte ; Mathias Tecza ; Fraser Clarke ; Timothy Goodsall ; Lisa Fogarty ; Ryan Houghton ; Graeme Salter ; Nicholas Scott ; Roger L. Davies ; Antonin Bouchez and Richard Dekany "The Oxford SWIFT Spectrograph: first commissioning and on-sky results", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77357Y (July 20, 2010); doi:10.1117/12.857484;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71669
Deposited By: Ruth Sustaita
Deposited On:02 Nov 2016 16:05
Last Modified:09 Mar 2020 13:18

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