Refereed journal article or data article (A1)

Double Image Polarimeter-Ultra Fast: Simultaneous Three-color (BV R) Polarimeter with Electron-multiplying Charge-coupled Devices

List of Authors: Piirola Vilppu, Kosenkov Ilia A, Berdyugin Andrei V, Berdyugina Svetlana V, Poutanen Juri


Publication year: 2021

Journal: The Astronomical Journal

Journal name in source: ASTRONOMICAL JOURNAL

Journal acronym: ASTRON J

Volume number: 161

Issue number: 1

Number of pages: 9

ISSN: 0004-6256

eISSN: 1538-3881



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We describe a new instrument capable of high-precision (10(-5)) polarimetric observations simultaneously in three passbands (BVR). The instrument utilizes electron-multiplying charge-coupled device (EM CCD) cameras for high efficiency and fast image readout. The key features of the Double Image Polarimeter-Ultra Fast (DIPol-UF) are: (i) the optical design with high throughput and inherent stability; (ii) great versatility, which makes the instrument optimally suitable for observations of bright and faint targets; and (iii) a control system, which allows the use of 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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Last updated on 2022-29-09 at 13:37