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Abstract Review
| Corresponding Author |
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| Authors |
| Name | | Affiliation |
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Eric Steinbring |
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HIA/NRC, CfAO |
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Jason Melbourne |
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UCO/Lick, CfAO |
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Anne Metevier |
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UCO/Lick, CfAO |
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David Koo |
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UCO/Lick, CfAO |
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| Abstract |
| Session | | 4 (Applications of optical turbulence observations and custom forecasting in telescope astronomy.) |
| Title | | 'Two Applications of Turbulence Characterization that Improve Deep AO Imaging with the Laser' |
| Abstract | | Laser AO observations are now becoming routine. This is a huge boon to extragalactic astronomy, bringing to bear 8 to 10-m-class telescopes on
faint high-redshift galaxies that are otherwise unreachable from the
ground. The Center for Adaptive Optics Treasury Survey (CATS) has
exploited this. It employs Keck laser AO to obtain deep (~1 hr) NIR
exposures over relatively large fields (~50" X 50") already imaged with
HST. The PSF is of comparable sharpness to HST in the optical, and even better in the NIR. But to capitalize on this the PSF must be well
characterized. Two techniques we have employed are presented. One
requires calibration observations of a globular cluster taken during the
night, and the other utilizes independent turbulence profile information
provided by the nearby TMT site testing tower. How these translate into
improved galaxy photometry is discussed.
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