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Proceedings Paper

Performance of the WIYN high-resolution infrared camera
Author(s): Margaret Meixner; Stephen Smee; Ryan L. Doering; Robert H. Barkhouser; Todd Miller; Joseph Orndorff; Patricia Knezek; Edward Churchwell; Gregg Scharfstein; Jeffrey Percival; David Mills; Charles Corson; Richard Joyce; Brian Ferguson; Masaaki Otsuka
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Paper Abstract

The WIYN High Resolution Infrared Camera (WHIRC) has been a general-use instrument at the WIYN telescope on Kitt Peak since 2008. WHIRC is a near-infrared (0.8 - 2.5 μm) camera with a filter complement of J, H, Ks broadband and 10 narrowband filters, utilizing a 2048 × 2048 HgCdTe array from Raytheon's VIRGO line, developed for the VISTA project. The compact on-axis refractive optical design makes WHIRC the smallest near-IR camera with this capability. WHIRC is installed on the WIYN Tip-Tilt Module (WTTM) port and can achieve near diffraction-limited imaging with a FWHM of ~0.25 arcsec at Ks with active WTTM correction and routinely delivers ~0.6 arcsec FWHM images without WTTM correction. During its first year of general use operation at WIYN, WHIRC has been used for high definition near-infrared imaging studies of a wide range of astronomical phenomena including star formation regions, stellar populations and interstellar medium in nearby galaxies, high-z galaxies and transient phenomena. We discuss performance and data reduction issues such as distortion, pupil ghost, and fringe removal and the development of new tools for the observing community such as an exposure time calculator and data reduction pipeline.

Paper Details

Date Published: 20 July 2010
PDF: 14 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77353N (20 July 2010); doi: 10.1117/12.857493
Show Author Affiliations
Margaret Meixner, Space Telescope Science Institute (United States)
Stephen Smee, The Johns Hopkins Univ. (United States)
Ryan L. Doering, Univ. of Wisconsin-Madison (United States)
Robert H. Barkhouser, The Johns Hopkins Univ. (United States)
Todd Miller, Space Telescope Science Institute (United States)
Joseph Orndorff, The Johns Hopkins Univ. (United States)
Patricia Knezek, WIYN Observatory (United States)
Edward Churchwell, Univ. of Wisconsin-Madison (United States)
Gregg Scharfstein, The Johns Hopkins Univ. (United States)
Jeffrey Percival, Univ. of Wisconsin-Madison (United States)
David Mills, National Optical Astronomy Observatory (United States)
Charles Corson, WIYN Observatory (United States)
Richard Joyce, National Optical Astronomy Observatory (United States)
Brian Ferguson, Space Telescope Science Institute (United States)
Masaaki Otsuka, Space Telescope Science Institute (United States)


Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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