PICSARR: high-precision polarimetry using CMOS image sensors
Article
Bailey, Jeremy, Cotton, Daniel V, De Horta, Ain, Kedziora-Chudczer, Lucyna and Shastri, Om. 2023. "PICSARR: high-precision polarimetry using CMOS image sensors." Monthly Notices of the Royal Astronomical Society. 520 (2), pp. 1938-1949. https://doi.org/10.1093/mnras/stad271
Article Title | PICSARR: high-precision polarimetry using CMOS image sensors |
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ERA Journal ID | 1074 |
Article Category | Article |
Authors | Bailey, Jeremy, Cotton, Daniel V, De Horta, Ain, Kedziora-Chudczer, Lucyna and Shastri, Om |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 520 (2), pp. 1938-1949 |
Number of Pages | 12 |
Year | 2023 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/stad271 |
Web Address (URL) | https://academic.oup.com/mnras/article/520/2/1938/7008531 |
Abstract | We have built and tested a compact, low-cost, but very high performance astronomical polarimeter based on a continuously rotating half-wave plate and a high-speed imaging detector. The polarimeter is suitable for small telescopes up to ∼1 m in aperture. The optical system provides very high transmission over a wide wavelength range from the atmospheric ultraviolet cut-off to ∼1000 nm. The high quantum efficiency, low noise, and high speed of the detectors enable bright stars to be observed with high precision as well as polarization imaging of extended sources. We have measured the performance of the instrument on 20 and 60 cm aperture telescopes. We show some examples of the type of science possible with this instrument. The polarimeter is particularly suited to studies of the wavelength dependence and time variability of the polarization of stars and planets. |
Keywords | instrumentation: polarimeters; polarization ; instrumentation: polarimeters |
ANZSRC Field of Research 2020 | 5101. Astronomical sciences |
Public Notes | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2023 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Byline Affiliations | University of New South Wales |
Western Sydney University | |
Monterey Institute for Research in Astronomy, United States | |
Centre for Astrophysics | |
Los Gatos High School, United States |
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https://research.usq.edu.au/item/z254v/picsarr-high-precision-polarimetry-using-cmos-image-sensors
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