UNIVERSITY OF CALIFORNIA OBSERVATORIES / LICK OBSERVATORY

SYNOPSES OF MOUNT HAMILTON FACILITY INSTRUMENTS: SPECTROGRAPHS

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INSTRUMENTTELESCOPE
DISPERSERDISPERSIONRANGECOVERAGE
DETECTOR
HAMILTON ECHELLE
SPECTROGRAPH

A prism cross-dispersed,
high-resolution instrument.
Steve Vogt, UCSC
Shane 3-m coude
and
Coude Auxiliary Telescope (CAT)
resolution ~ 95000 @ 6500 A
echelle 0.029 A/pix @ 3500 A
0.083 A/pix @ 9840 A
3500-10000 A6500 A
dewar #6, 2048 x 2048 thinned CCD, 15-u pixels
KAST DOUBLE
SPECTROGRAPH

A simultaneous red/blue,
two-channel instrument,
with limited imaging capability.
Joe Miller, UCSC
Shane 3-m
cassegrain
red channel: resolution ~ 500-3000
600 / 5000 A2.35 A/pix3800-10000 A 2820 A
600 / 7500 A2.32 A/pix3800-10000 A 2780 A
830 / 8460 A1.70 A/pix3800-10000 A 2040 A
1200 / 5000 A1.17 A/pix3800-7310 A 1404 A
300 / 4230 A4.59 A/pix3800-11000 A 5508 A
300 / 7500 A4.60 A/pix3800-11000 A 5520 A
blue channel: resolution ~ 700-1700
452 / 3306 A1.41 A/pix3100-6200 A 2890 A
600 / 4310 A1.02 A/pix3100-5520 A 2090 A
830 / 3460 A0.63 A/pix3100-4550 A 1290 A

A polarimeter is available for use in both channels.

red channel:
Kast Red dewar, 400 x 1200 thinned CCD, 27-u pixels

blue channel:
Kast Blue dewar, 2048 x 2048 Fairchild CCD, 15-u pixels

NICKEL SPECTROGRAPH
Richard Stover, UCSC
Nickel 1-m
cassegrain
resolution ~
300 / 5500 A7.6 A/pix- 9120 A
600 / 6500 A2.5 A/pix- 3000 A
600 / 4820 A3.5 A/pix- 4820 A
300 / 7800 A7.2 A/pix- 8640 A
420 / 5600 A5.0 A/pix- 6000 A
echism2.0 A/pix- order dependent
Numbers are for 110 mm camera lens; 58 mm lens is no longer supported..
The 300/5500A and 300/7800A are not recommended for use.
dewar #9, 400 x 1200 thinned CCD, 27-u pixels
GEMINI
THE UCLA TWIN-ARRAYS INFRARED CAMERA
A simultaneous two-channel instrument with direct imaging capabilites.
Ian McLean, UCLA
Shane 3-m
cassegrain
short wave channel: resolution ~
J-Grism11.7 A/pix1.08 - 1.38 um3000 A
H-Grism15.9 A/pix1.44 - 1.85 um4050 A
long wave channel: resolution ~
K-Grism19.2 A/pix1.92 - 2.41 um4900 A
short wave channel:
256 x 256 NICMOS3 HgCdTe array, 40-u pixels

long wave channel:
256 x 256 SBRC InSb array

IRCAL / Lick Adaptive Optics
The Lick AO system and IRCAL camera is primarily a direct imaging instrument, but offers limited spectrograph capability.
Shane 3-m
cassegrain

See IRCAL manual

NOTES
DISPERSER: given as rulings per mm / 1st order blaze wavelength
DISPERSION: Angstroms/pixel for the given detector
RANGE: the useful wavelength range
COVERAGE: the maximum wavelength coverage for a single exposure
RESOLUTION: lambda/delta lambda at blaze wavelength; narrow slit
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