Giant+Telescopes

Giant+Telescopes - Giant Telescopes Part I Gary Chanan...

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1 Gary Chanan Department of Physics and Astronomy University of California, Irvine 3 October 2011 Giant Telescopes Part I
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2 Outline Introduction Adaptive Optics Giant Telescopes and Other Giant Structures Science with Extremely Large Telescopes Giant Telescopes of the 1990 s Giant Telescopes of the Next Decade
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3 Why Build a Bigger Telescope? • Figure of merit for non-Adaptive Optics observations: (Diameter) 2 • Figure of merit for Adaptive Optics observations*: (Diameter) 4
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4 Why Build a Bigger Telescope? • Figure of merit for non-Adaptive Optics observations: (Diameter) 2 • Figure of merit for Adaptive Optics observations*: (Diameter) 4 ____________________________________ *provided telescope is properly phased
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5 Schematic of an Astronomical AO System
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6 Neptune - AO
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7 Neptune - AO
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8 The Galactic Center (Ghez, UCLA)
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Jupiter s Io
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11 Giant Structures Bridges – Kinzua Viaduct 1887 600m steel – Quebec Bridge 1917 600m steel, collapsed – Golden Gate Bridge 1937 30x2000m steel – Tacoma Narrows Bridge 1940 steel, collapsed
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12 Giant Structures (cont.) Kinzua Viaduct – July 21, 2003
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13 Giant Structures Radio Telescopes – Arecibo 1963 300m fxed dish – Sugar Grove 1960 s 200m steerable, cancelled – EFFelsberg 1970 100m Fully steerable – Green Bank 300 Ft 1989 91 m Fully steerable – Green Bank Tel. 2000 100m Fully steerable
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14 November 15, 1988
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15 November 16, 1988
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16 Giant Structures
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Giant+Telescopes - Giant Telescopes Part I Gary Chanan...

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