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The Irénée du Pont Telescope

Instrument Description Specs Website Notes
CCD Direct CCD Camera page.gif A
WIRC Wide Field IR Camera page.gif B
WFCCD Wide Field Reimaging CCD Camera page.gif C
Boller & Chivens Spectrograph Slit Spectrograph page.gif D
Echelle Echelle Spectrograph   page.gif E
CAPSCam Astrometric Planet Search Camera page.gif F




A. The Tek#5 CCD is available for direct imaging on the du Pont 2.5-meter telescope, and gives a scale of 0.259" per pixel over a field of 8.85 arcmin square.


B. The WIRC is an imaging camera composed of four 1024 x 1024 Hawaii HgCdTe arrays mounted in a common focal plane. The gap between the arrays is ~0.9 of an array dimension. The instrument is operated at the Cassegrain focus of the du Pont telescope and has a scale of 0.196" per pixel.


C. The wide field reimaging CCD (WFCCD) camera reimages a 25 arc-minute diameter field onto the TEK#5 CCD camera, with a scale of 0.77 arcsec/pixel. It produces images of approximately two pixels over the full field, and has good transmission from 3800 Å to 9000 Å. Metal slit masks are used to provide a multi-object spectroscopy capability. Observers should consult J. Mulchaey ( or I. Thompson ( about mask making procedures and should allow three months for the production of the masks.


D. The B & C spectrograph will become available again on the du Pont Telescope during the first semester of 2006. The B & C uses a Marconi CCD mated to a Bowen Schmidt camera as the detector. When used with the 600 line/mm grating the dispersion is 1.5 Å/pixel with a wavelength coverage of 3100 Å. The spatial scale on the du Pont Telescope is 0.70 arcsec/pixel, and the maximum slit length 271 arcsec.


E. The Echelle Spectrograph provides simultaneous wavelength coverage from ~3700-7000 Å at a typical resolution of ~40,000.


F. CAPSCam is a specialized astrometric camera designed for an astrometric search for Jupiter-like planets.  The camera employs a Rockwell Hawaii-2RG HyViSI array, and the design is optimized for high accuracy astrometry of red dwarf stars.  Observers interested in using this instrument should contact Alan Boss (Carnegie-DTM) or Ian Thompson (OCIW).

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