... In ground-based optical imaging applications there is often sufficient signal in every pixel due to photons from the nightsky background that all traps remained filled, and they have a negligible effect on the image data. ...
... The Crab was optically discovered in 1054 by Chinese astronomers who observed a supernova event as a so-called bright guest star that was observable in the sky with the naked eye for some days during the day and for the following two years at night. ...
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Ссылки http://xmm.vilspa.esa.es/docs/documents/CAL-TN-0061-1-0.pdf -- 1023.2 Кб -- 10.11.2005 Похожие документы
... The two EPIC-MOS instruments were cooled in the night of November 6-7 2002, with the ... crossing the magneto-tail and/or the night side of the magnetosphere is more prone ...
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Ссылки http://xmm.vilspa.esa.es/docs/documents/CAL-TN-0062-1-0.pdf -- 673.9 Кб -- 10.11.2005 Похожие документы