... average zodiacal background of 0.17 MJy/sr at 1.2 µm and 0.14 MJy/sr at 1.6 µm. The zodiacallight model presented in the NICMOS Handbook (v2 1997) supposedly providing mean values for an inclination of 45 degrees over the ecliptic, was used to verify 2 ...
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Ссылки http://www.stsci.edu/hst/wfc3/documents/ISRs/2002/WFC3-2002-02.pdf -- 54.2 Кб -- 25.09.2008 Похожие документы
... Background light, as measured for each W&M filter from external images of a single field of medium zodiacallight level, will be compared to those anticipated from known sources (e.g. Zodiacallight) and WFC3 throughput (cf. ...
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Ссылки http://www.stsci.edu/smov/SMOV4%20WEB%20PAGE%20OCT2007/SMOV4%20Activity%20Summaries/WFC3.pdf -- 128.9 Кб -- 18.03.2009 Похожие документы
... 1.7 Completed NIC/2 7441 (A Search for Zodiacal Dust around Bright Nearby Stars) The Near Infrared Camera (Camera Two) was used to make observations of the zodiacallights around the bright nearby star Sirius. ...
... choice of this cutoff wavelength is driven by the desire to be limited by the background contribution from the sky (zodiacallight) and the thermal emission of the telescope optics, given the anticipated detector operating temperature of 150 K. The basic ...
... 1.3 Completed Two Sets of NIC/2 7441 (A Search for Zodiacal Dust around Bright Nearby Stars) The Near Infrared Camera (Camera Two) was used to make observations of the zodiacallights around the bright nearby star Altair. ...
... 1.10 Completed Two Sets of NIC/2 7441 (A Search for Zodiacal Dust around Bright Nearby Stars) The Near Infrared Camera (Camera Two) was used to make observations of the zodiacallights around the bright nearby star Sirius. ...
... 5 Detector signal (electrons/pixel/sec) 1E+3 Zodiacallight 1E+1 1E1 Dust scattered ... are needed for the observatory to be zodiacal-light-limited up to about 30 microns ...
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Ссылки http://www.stsci.edu/ftp/stsci/newsletters/1999/stsci.news.1.99.pdf -- 919.3 Кб -- 23.03.1999 Похожие документы
... choice of this cutoff wavelength is driven by the desire to be limited by the background contribution from the sky (zodiacallight) and the thermal emission of the telescope optics, given the anticipated detector operating temperature of 150 K. The basic ...
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Ссылки http://www.stsci.edu/stsci/meetings/space_detectors/pdf/workshop2.pdf -- 127.1 Кб -- 22.08.2001 Похожие документы