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arXiv · 2011.02129

DIPol-UF: simultaneous three-color ($BVR$) polarimeter with EM CCDs

Vilppu Piirola·Ilia A. Kosenkov·Andrei V. Berdyugin·Svetlana V. Berdyugina·Juri Poutanen
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Abstract

We describe a new instrument capable of high precision ($10^{-5}$) polarimetric observations simultaneously in three passbands ($BVR$). The instrument utilizes electron-multiplied EM CCD cameras for high efficiency and fast image readout. The key features of DIPol-UF are: (i) optical design with high throughput and inherent stability; (ii) great versatility which makes the instrument optimally suitable for observations of bright and faint targets; (iii) control system which allows using the polarimeter remotely. Examples are given of the first results obtained from high signal-to-noise observations of bright nearby stars and of fainter sources such as X-ray binaries in their quiescent states

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Vilppu Piirola, Ilia A. Kosenkov, Andrei V. Berdyugin, Svetlana V. Berdyugina, Juri Poutanen. 2020-11-04. DIPol-UF: simultaneous three-color ($BVR$) polarimeter with EM CCDs. https://arxiv.org/abs/2011.02129

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