A high-sensitivity polarimeter using a ferro-electric liquid crystal modulator
Article
Article Title | A high-sensitivity polarimeter using a ferro-electric liquid crystal modulator |
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ERA Journal ID | 1074 |
Article Category | Article |
Authors | Bailey, Jeremy, Kedziora-Chudczer, Lucyna, Cotton, Daniel V., Bott, Kimberly, Hough, J. H. and Lucas, P. W. |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 449 (3), pp. 3064-3073 |
Number of Pages | 10 |
Year | 2015 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/stv519 |
Web Address (URL) | https://academic.oup.com/mnras/article/449/3/3064/2893054 |
Abstract | We describe the HIgh Precision Polarimetric Instrument (HIPPI), a polarimeter built at UNSW (The University of New South Wales) Australia and used on the Anglo-Australian Telescope (AAT). HIPPI is an aperture polarimeter using a ferro-electric liquid crystal modulator. HIPPI measures the linear polarization of starlight with a sensitivity in fractional polarization of ~4 × 10-6 on low-polarization objects and a precision of better than 0.01 per cent on highly polarized stars. The detectors have a high dynamic range allowing observations of the brightest stars in the sky as well as much fainter objects. The telescope polarization of the AAT is found to be 48 ± 5 × 10-6 in the g' band. |
Keywords | Instrumentation: polarimeters; Polarization; Techniques: polarimetric |
Public Notes | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Funder | Science and Technology Facilities Council |
Byline Affiliations | University of New South Wales |
University of Hertfordshire, United Kingdom |
https://research.usq.edu.au/item/wz8xx/a-high-sensitivity-polarimeter-using-a-ferro-electric-liquid-crystal-modulator
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