NIMPOL: An Imaging Polarimeter for the Mid-infrared

Publications of the Astronomical Society of Australia

Craig H. Smith¹ 

[1] Toby J. T. Moore

关键词: instrumentation: infrared;    polarimetry;   

DOI  :  10.1071/AS97179

学科分类：天文学(综合)

来源: CSIRO

【 摘 要 】

We have built an imaging polarimeter for use at mid-infrared wavelengths (i.e. N band or 8–13 μm). The detecting element is a 128 × 128 element Si:Ga Focal Plane Array, supplied by Amber Engineering, USA. The polarimeter itself provides diffraction limited images on a 4-m class telescope and has a field of view of about 32 arcsec of sky with 0·25 arcsec pixels. We describe the optical design, control electronics, observing modes and detector sensitivities. Also presented are some observational results to demonstrate the power of this new imaging polarimetric system.

【 授权许可】

Unknown