Zodiacal Infrared Foreground Prediction for Space Based Infrared Interferometer Missions |
| |
| Authors: | M Landgraf R Jehn |
| |
| Institution: | (1) European Space Agency, European Space Operations Center, Robert-Bosch-Str. 5, 64293 Darmstadt, Germany |
| |
| Abstract: | The zodiacal foreground for a highly sensitive space infrared interferometer is predicted for various observing locations.
For the predictions we use a model that was derived from measurements of the Cosmic Background Explorer (COBE). We find that
at a wavelength of10 μm 96% of the sky is darker than 1 MJy sr-1 for observations in the ecliptic plane at 5 AU, and 83% is darker than 0.1 MJy sr-1.At 1 AU, however, always more than 50% of the sky are brighter than1 MJy sr-1, even if the observations are made from 30° or60° of latitude above the ecliptic plane, at 10 or 20 μm.Thus, according to the employed model, the foreground reduction by increasing
the heliocentric distance of the observing location is more effective than by increasing the latitude.
This revised version was published online in July 2006 with corrections to the Cover Date. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
