THuCIDIDES: a high-efficiency multimode spectrograph design for the Hale Telescope
- Creators
- Behr, Bradford B.
- Other:
- D'Odorico, Sandro
Abstract
This paper describes the operating parameters and initial design of a new spectrograph proposed for the 200-inch Hale Telescope at Palomar Observatory. The instrument, whose working name is THuCIDIDES (Two Hundred-inch Cassegrain Image- Deblurred Interchangeable-Disperser/Echelle Spectrograph), will feature high system efficiency and multiple modes of operation, including low- and intermediate-resolution long slit and multi-slit capability over 12.5 X 3 arcmin fields, and a cross-dispersed echelle mode covering 3800 - 8500 angstrom at R equals 20,000 (with a 1.2 arcsecond slit) up to R equals 60,000 (with an image slicer). A 4096 X 4096 pixel CCD will serve as the detector. The quasi-Littrow echelle configuration and use of a prism cross-disperser will result in high system efficiency, estimated at approximately equals 14%. The compact design will permit mounting in the Cassegrain ring plane, to reduce susceptibility to flexure. An optional fast-guiding tilt mirror provides modest improvement to seeing FWHM and slit throughput.
Additional Information
© 1998 Society of Photo-Optical Instrumentation Engineers (SPIE). Special thanks to J. K. McCarthy, for many patient tutorials on spectrograph design theory, as well as specific guidance and assistance with this project.Attached Files
Published - 675.pdf
Files
Name | Size | Download all |
---|---|---|
md5:27b5ca128522cf71b70c6d0ea2c33b05
|
530.6 kB | Preview Download |
Additional details
- Eprint ID
- 88448
- Resolver ID
- CaltechAUTHORS:20180801-112900212
- Created
-
2018-08-01Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 3355