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Gemini South Adaptive Optics Imager. Peter McGregor Research School of Astronomy & Astrophysics The Australian National University. GSAOI for Gemini South. GSAOI Status. Under construction at Mt. Stromlo Obs., ANU Completed “zeroeth” cool down for thermal tests

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Gemini south adaptive optics imager

Gemini South Adaptive Optics Imager

Peter McGregor

Research School of Astronomy & Astrophysics

The Australian National University



Gsaoi status
GSAOI Status

  • Under construction at Mt. Stromlo Obs., ANU

  • Completed “zeroeth” cool down for thermal tests

  • First cool down with mechanisms in July 2004

  • One science detector and two eng. detectors

  • Shipment scheduled for October 2005

  • Commissioning January 2006 (after MCAO-1)






Multi conjugate adaptive optics1

Science Path

NGS WFS Path

LGS WFS Path

Multi-Conjugate Adaptive Optics


Gsaoi specifications
GSAOI Specifications

  • Used with MCAO system

  • Field-of-view: 8585

  • Spatial pixel size: 0.020.02

  • Broad band filters: Z, J, H, Ks, K', K

  • Narrow band filters: 1.5% wide zero-redshift emission-line filters

  • Narrow band Lyα filters at J?

  • Four HAWAII-2RG detectors

    • 4080×4080 pixels



Gsaoi guide star geometry

5 LGS

1-3 Opt. NGS

1-4 NIR NGS

GSAOI Guide Star Geometry


Gsaoi guide star geometry1

5 LGS

1-3 Opt. NGS

1-4 NIR NGS

GSAOI Guide Star Geometry


Gsaoi performance
GSAOI Performance

http://www.mso.anu.edu.au/gsaoi


Bulk motions from sbf

Virgo

Local Group

Great Attractor

Bulk Motions from SBF


Star formation histories

And V - GMOS

Star Formation Histories


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