题  目：Triple-Range（g’ r’ i’）Imager and POLarimeter (TRIPOL):Simple and Versatile Instrument matched with small telescopes

报告人：Shuji Sato (佐藤修二)　名古屋大学天文系　　　

摘  要：We have developed a simple and compact instrument called as TRIPOL (Triple-Range Imager and POLarimeter). It is capable of both imagery and polarimetry at three bands {g’ r’ i’}, by splitting a wavelength range from 400nm to 830nm into the 3-colors with two dichroic mirrors and three CCDs.

An achromatic half-waveplate (rotating) and a wire-grid (fixed) are added for polarimetry. It can be directly attached to a Cassegrain focus of small telescopes around 1m apertures. Owing to the simultaneous data-acquisition of the three-colors, it provides i) SED (Spectral Energy Distribution), ii) Color-Magnitude and iii) Color-Color Diagrams, and iv) P(λ, θ), wavelength-dependences of degrees and angles of polarization, automatically. We present results of the test observations at the Anpachi-0.7m and Lulin-1m telescopes.

We propose extension of the wavelengths range up to 1.55μm {Y, J, Hs}, using InGaAs array detectors. 

时  间：2011年10月7日（星期五）上午 10:00

地  点：（北京西路2号）紫台大楼619会议室

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