Infrared straylight measurements of the ISO telescope

被引：4

作者：

Klaas, U ^{[1
]}

Lemke, D ^{[1
]}

Kranz, T ^{[1
]}

Laureijs, RJ ^{[1
]}

Leinert, C ^{[1
]}

Schubert, J ^{[1
]}

Stickel, M ^{[1
]}

Toth, LV ^{[1
]}

机构：

[1] Max Planck Inst Astron, D-69117 Heidelberg, Germany

来源：

INFRARED ASTRONOMICAL INSTRUMENTATION, PTS 1-2 | 1998年 / 3354卷

关键词：

infrared; straylight; cooled telescope;

D O I：

10.1117/12.317222

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Measurements were performed to verify the straylight suppression in the Infrared Space Observatory telescope using the ISOPHOT instrument. These tests comprised the near-field straylight by bright stars and planets as well as the far-field straylight by the Sun, the Earth, and the Moon. No significant straylight above the specifications reflecting the astronomical needs for low surface brightness absolute sky measurements could be detected at 25 and 170 mu m. In some cases comparison to preflight straylight simulations were possible. The consistency of the predictions from the models with the measurement results confirms the reasonable assumptions made for the simulations. This will allow to further optimise the telescope design for future low background IR space telescopes.

引用

页码：996 / 1004

页数：9