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http://www.naic.edu/general/index.php?option=com_content&view=article&id=149&Itemid=647.
http://www.naic.edu/general/index.php?option=com_content&view=article&id=149&Itemid=647.
1. Information National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... The Arecibo Observatory is part of the National Astronomy and Ionosphere Center (NAIC), a national research center operated by SRI International, USRA and UMET, under a cooperative agreement with the National Science Foundation (NSF). ... As the site of the world's largest single-dish radio telescope, the Observatory is recognized as one of the most important national centers for research in radio astronomy, planetary radar and terrestrial aeronomy. ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=149&Itemid=631 -- 17.6 Кб -- 13.04.2016
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2. http://www.naic.edu/~phil/mbeam/hipass.pdf
... 2.3 Data acquisition Spectra generated by the Multibeam correlator contain the usual structure seen in spectra from other H i instruments: a bandpass spectrum which is the sum of the sky , ground and receiver temperatures multiplied by the product of the filters in the receiver chain; superimposed on this is a noise ... Note also that sources extended much beyond ,40 arcmin can be imaged poorly in HIPASS images because of the bandpass sidelobe effect described in Section 3.3. ...
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Ссылки http://www.naic.edu/~phil/mbeam/hipass.pdf -- 370.1 Кб -- 14.03.2003
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