[BD+30 with Hokupa'a]

AO Focal Plane Instrumentation

The phase one instrumentation program consists of a suite of instruments which will benefit from phase one adaptive optics system, Altair. The charts below summarize the instrumentation and provide links to the instruments home pages.

Instrument Name Project Home Page Local Link
Gemini Near-Infrared Imager NIRI NIRI builder NIRI home page
Gemini Near-Infrared Spectrograph GNIRS GNIRS builder GNIRS home page
Gemini Multi-Object Spectrograph GMOS GMOS builder GMOS home page


 
 

Table 1. Gemini Phase I Instrumentation

Instruments

Wavelength Range

Array Format

Pixel Scale

FOV/Slit Length

Spectral Resolution

Other Capabilities

Upgrade Options

MAUNA KEA

Multi-Object Spectrograph

 (GMOS-N)

0.4 - 1.1Ám

4k x 6k CCD

0.08"

5.5' x 5.5'

R~1 k (3 pix) 

R~3k (3 pix)
 
 

R~10k (3 pix)

~200 multi slits 0.2" pix IFU

1-1.5Ám 

0.1" pix IFU

           

Imaging

 
Near IR Imager

 (NIRI)

1 - 5.5Ám

1k x 1k InSb

0.02" 

0.05
 
 

0.11

20" x 20" 

50" x 50"
 
 

110" x 110"

Filters to R~100

R~700 grism
 
 

Polarizing prism
 
 

Near IR WFS (t/t) Coronagraph

 
Near IR Spectrograph

 (NIRS)

1 - 5.5Ám

1k x 1k InSb

0.05" 

0.15"

50" 

100"

R=2k, 6k, 18k R=0.7k, 2k, 6k.

X Dispersion Polarizing Prism Near IR WFS (t/t)

1 - 2.5Ám 0.05" pix IFU R~30k

Adaptive Optics System (AOS)

1 - 2.5Ám
 
 

0.8 - 5.5Ám (goal)

   

2' dia

 

natural guide star conjugation to alt. feed all inst. ports 0.5 - 2.5Ám ADC

Laser Beacon

   

SR=0.4 at 1.6Ám, median seeing and bright guide stars

   

CERRO PACHON

Multi-Object Spectrograph

 (GMOS-S)

0.38 - 1.1Ám

4k x 6k CCD

0.08"

5.5' x 5.5'

R~ 1 k (3 pix) R~3k (3 pix) R~10k (3 pix)

~200 multi slits 0.2" pix IFU

1 - 1.5Ám
 
 

0.1" pix IFU

           

Imaging

 
High Resolution Optical Spectrometer

 (HROS)

0.30 - 1.1Ám

4k x 4k CCD

 

60"

30k - 80k

Cass mounted 

Prism X Dispersion

R= 120k 

Multi object Hi Stab Lab Feed Polarizing Prism

Mid-IR Imager

8 - 25Ám

~256 x 256

0.13"

40" x 40"

Filters to R~100

   

The First Future Gemini Instrumentation Workshop held in Abingdon, Oxfordshire resulted in a recommendation of an agressive program of future focal-plane instrumentation optimized for the adaptive optics systems. The recommended new capabilities are outlined in the workshop report RPT-PS-G0075, Future Gemini Instrumentation. The instruments which will be optimized for the AOSs are summarized in the following table.

Instrument Name Project Home Page Local Link
Small Field NIR Imager / Coronagraph ???? None yet None yet
Integral Field Units for GNIRS ???? None yet None yet
Small Field IR MOS ???? None yet None yet


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Page compiled by Mark Chun. Last update January 18, 2000; Francois Rigaut