The Irénée du Pont Telescope

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

NOTES

A. The SITe2K 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 WF4K CCD camera, with a scale of 0.484 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 (mulchaey@obs.carnegiesciene.edu) or I. Thompson (ian@obs.carnegiesciene.edu) about mask making procedures and should allow three months for the production of the masks.

D.  The B & C spectrograph 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).

G. RetroCam is a near-IR imager built especially for the Carnegie Supernova Program, but which is generally available to users.  RetroCam employs a Rockwell Hawaii-1 HgCdTe 1024x1024 array. The focal plane scale is 0.201 arcsec/pixel, with a total field size of  3.4arcmin square. A single filter wheel containing Y, J, and H filters is available.