Keck telescope
نویسندگان
چکیده
منابع مشابه
Michelson Interferometry with the Keck I Telescope
We report the Ðrst use of Michelson interferometry on the Keck I telescope for di†ractionlimited imaging in the near-infrared JHKL bands. By using an aperture mask located close to the f/25 secondary, the 10 m Keck primary mirror was transformed into a separate-element, multiple-aperture interferometer. This has allowed di†raction-limited imaging of a large number of bright astrophysical target...
متن کاملKeck Telescope Wavefront Errors: Implications for NGAO
This note details the effect of telescope static and dynamic wavefront errors on the performance of future AO systems at Keck observatory. Measurements at Keck are used to bound probable values of the input errors. Current understanding of all errors appears sufficient to design the NGAO system. A notable exception is the full aperture tip tilt vibrations at 29 Hz. These errors appear to have s...
متن کاملRemote Observing with the Keck Telescope Using the ACTS Satellite
As a technical demonstration project for the NASA Advanced Communications Technology Satellite (ACTS), we have implemented remote observing on the 10-meter Keck II telescope on Mauna Kea in Hawaii from the California Institute of Technology campus in Pasadena. The data connection consists of optical fiber networks in Hawaii and California, connecting the end-points to high data rate (HDR) ACTS ...
متن کاملTwo spectrograph control displays for the W.M. Keck Telescope
In the next section we discuss the advantages of depicting graphically the spectrograph light path. In section four we discuss our philosophy regarding user interaction. In section five we compare two approaches for working within limited screen space. Section six describes the stand alone simulation mode used for training and debugging. Finally, in section seven we discuss the development tool...
متن کاملDeep Optical Galaxy Counts with the Keck Telescope
We present faint galaxy counts from deep V RI images obtained with the Keck Telescope. These images reach R ∼ 27 in median seeing FWHM ∼ 0.5–0.6 arcsec and we detect a integrated galaxy number density of 7 × 10 degree, equivalent to 3 × 10 galaxies in the observable Universe. In addition we present median galaxy colors as a function of magnitude; bluing trends are visible in all colors to R ∼ 2...
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ژورنال
عنوان ژورنال: Nature
سال: 1987
ISSN: 0028-0836,1476-4687
DOI: 10.1038/330005c0