PI: Margaret Meixner, Space Telescope Science Institute
Project Scientist: Ed Churchwell, University of Wisconsin
WIYN Observatory Liaison: Heidi Schweiker
KPNO WHIRC Instrument Scientist: Dick Joyce
WHIRC commissioning activities began in July 2007 and were completed in
November 2008, when it was accepted by WIYN as a general-use instrument. WHIRC
is a near-IR (0.9-2.5 micron) camera for the WIYN 3.5m telescope residing on the
WIYN Tip-Tilt Module (WTTM) port. During semester 2010A, WHIRC is being
supported in direct imaging mode without active WTTM correction.
Observing with WTTM correction is also being supported in
2010A, depending on the availability of WIYN support personnel familiar with
WTTM operation. WHIRC has frequently demonstrated seeing limited
performance of approximately 0.5-0.6" FWHM, and as good as 0.3" on exceptional
nights. With the full tip-tilt first-order AO corrections possible with WTTM,
WHIRC should typically deliver images with approximately 0.3" FWHM and
near-diffraction-limited images (0.20") in the Ks band on exceptional
nights. The optical design uses a Raytheon 2048×2048 HgCdTe
VIRGO array with a fixed pixel scale of 0.1" (20 µm
pixels). The field of view (3.3'×3.3') covers most of the WTTM corrected field.
WHIRC has two filter wheels providing three broadband filters (J, H, Ks),
and an assortment of 10 narrow band filters.
More detailed information on the instrument and current performance can be found here.
|Pa β (~4500 km/s)||1.303||0.0133|
|[Fe II] (~4500 km/s)||1.668||0.0162|
|Br γ (~4500 km/s)||2.188||0.0237|
Figure 1 WHIRC on the WIYN WTTM port.
questions about this website: email@example.com