Integral field spectroscopy with the Gemini Near-Infrared Spectrograph

Jeremy R. Allington-Smith; Cornelis M. Dubbeldam; Robert Content; Colin J. Dunlop; David J. Robertson; Jay Elias; Bernadette Rodgers; James E.H. Turner

doi:10.1117/12.551627

30 September 2004 Integral field spectroscopy with the Gemini Near-Infrared Spectrograph

Jeremy R. Allington-Smith, Cornelis M. Dubbeldam, Robert Content, Colin J. Dunlop, David J. Robertson, Jay Elias, Bernadette Rodgers, James E.H. Turner

Author Affiliations +

Proceedings Volume 5492, Ground-based Instrumentation for Astronomy; (2004) https://doi.org/10.1117/12.551627
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

The Astronomical Instrumentation Group (AIG) of the University of Durham has recently completed an integral field unit (IFU) for use on the Gemini-South telescope with the Gemini Near-Infrared Spectrograph (GNIRS) built by the National Optical Astronomy Observatories (NOAO, USA). When the IFU is deployed remotely inside the instrument cryostat, GNIRS is converted into an integral field spectrograph with a field of 5 × 3 arcsec² and spatial sampling of 0.15 × 0.15 arcsec², optimised for 1-2.5μm but operable up to 5μm. We present summaries of the design and construction and results from laboratory testing. We also show results obtained at the telescope where a throughput of 90% was measured at 2.5μm, and show that this is consistent with predictions of a simple model where surface scattering is the dominant loss mechanism. The throughput data are well fit by the roughness measured in the laboratory. Finally, we show a few examples of astrophysical data from the commissioning run in April 2004.

Citation Download Citation

Jeremy R. Allington-Smith, Cornelis M. Dubbeldam, Robert Content, Colin J. Dunlop, David J. Robertson, Jay Elias, Bernadette Rodgers, and James E.H. Turner "Integral field spectroscopy with the Gemini Near-Infrared Spectrograph", Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); https://doi.org/10.1117/12.551627

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available