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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 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

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  1. Gemini South Adaptive Optics Imager Peter McGregor Research School of Astronomy & Astrophysics The Australian National University

  2. GSAOI for Gemini South

  3. 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)

  4. Adaptive Optics

  5. Natural Seeing

  6. Classical Adaptive Optics

  7. Multi-Conjugate Adaptive Optics

  8. Science Path NGS WFS Path LGS WFS Path Multi-Conjugate Adaptive Optics

  9. 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

  10. On-Detector Guide Windows

  11. 5 LGS 1-3 Opt. NGS 1-4 NIR NGS GSAOI Guide Star Geometry

  12. 5 LGS 1-3 Opt. NGS 1-4 NIR NGS GSAOI Guide Star Geometry

  13. GSAOI Performance http://www.mso.anu.edu.au/gsaoi

  14. Virgo Local Group Great Attractor Bulk Motions from SBF

  15. And V - GMOS Star Formation Histories

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