Share Email Print
cover

Proceedings Paper

OSIRIS: a diffraction limited integral field spectrograph for Keck
Author(s): James Larkin; Matthew Barczys; Alfred Krabbe; Sean Adkins; Ted Aliado; Paola Amico; George Brims; Randy Campbell; John Canfield; Thomas Gasaway; Allan Honey; Christof Iserlohe; Christopher A. Johnson; Evan Kress; David LaFreniere; James Lyke; Ken Magnone; Nick Magnone; Michael McElwain; Juleen Moon; Andreas Quirrenbach; Gunnar Skulason; Inseok Song; Michael Spencer; Jason Weiss; Shelley Wright
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We present an overview of the OSIRIS integral field spectrograph which was recently commissioned on the Keck II Telescope. OSIRIS works with the Keck Adaptive Optics system and utilizes an infrared transmissive lenslet array to sample a rectangular field of view at close to the Keck diffraction limit. By packing the spectra close together (2 pixel rows per spectrum) and using the Rockwell Hawaii-2 detector (wavelengths between 1 and 2.5 microns), we achieve a relatively large field of view (up to 6."4) while maintaining full broad-band spectral coverage at a resolution of 3800. Among the challenges of the instrument are: a fully cryogenic design (approximately 250 kg are brought down to 55K); four spatial scales from 0."02 to 0."10; extremely low wavefront error (approximately 25 nm of non-common path error); large all aluminum optics for the spectrograph; extremely repeatable spectral formats; and a sophisticated data reduction pipeline. OSIRIS also serves as a starting point for our design of IRIS which is a planned integral field spectrograph for the Thirty Meter Telescope.

Paper Details

Date Published: 28 June 2006
PDF: 5 pages
Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 62691A (28 June 2006); doi: 10.1117/12.672061
Show Author Affiliations
James Larkin, Univ. of California, Los Angeles (United States)
Matthew Barczys, Univ. of California, Los Angeles (United States)
Alfred Krabbe, Univ. Köln (Germany)
Sean Adkins, California Association for Research in Astronomy (United States)
Ted Aliado, Univ. of California, Los Angeles (United States)
Paola Amico, California Association for Research in Astronomy (United States)
George Brims, Univ. of California, Los Angeles (United States)
Randy Campbell, California Association for Research in Astronomy (United States)
John Canfield, Univ. of California, Los Angeles (United States)
Thomas Gasaway, Space Sciences Lab, Univ. of California, San Diego (United States)
Allan Honey, California Association for Research in Astronomy (United States)
Christof Iserlohe, Univ. Köln (Germany)
Christopher A. Johnson, Univ. of California, Los Angeles (United States)
Evan Kress, Univ. of California, Los Angeles (United States)
David LaFreniere, Univ. de Montréal (Canada)
James Lyke, California Association for Research in Astronomy (United States)
Ken Magnone, Univ. of California, Los Angeles (United States)
Nick Magnone, Univ. of California, Los Angeles (United States)
Michael McElwain, Univ. of California, Los Angeles (United States)
Juleen Moon, Univ. of California, Los Angeles (United States)
Andreas Quirrenbach, Sterrewacht Leiden (Netherlands)
Gunnar Skulason, Univ. of California, Los Angeles (United States)
Inseok Song, Gemini Observatory (United States)
Michael Spencer, Univ. of California, Los Angeles (United States)
Jason Weiss, Univ. of California, Los Angeles (United States)
Shelley Wright, Univ. of California, Los Angeles (United States)


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

© SPIE. Terms of Use
Back to Top