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1. Astronomers Detect Coolest Radio Star National Astronomy and Ionosphere Center
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Visitor Center . ... Kick-Off Ceremony of the Arecibo Observatory 50th Anniversary . ... Astronomers using the worldБЂ™s largest radio telescope, at Arecibo, Puerto Rico, have discovered flaring radio emission from an ultra-cool star, not much warmer than the planet Jupiter, shattering the previous record for the lowest stellar temperature at which radio waves were detected. ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=197:cool-star&catid=105&Itemid=640 -- 19.7 Кб -- 13.04.2016
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2. http://www.naic.edu/~astro/Links.shtml
[ Сохраненная копия ]  Ссылки http://www.naic.edu/~astro/Links.shtml -- 1.2 Кб -- 01.10.2012
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3. 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. ...
[ Текст ]  Ссылки http://www.naic.edu/~phil/mbeam/hipass.pdf -- 370.1 Кб -- 14.03.2003
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