HIPPI-2: A versatile high-precision polarimeter
Article
Article Title | HIPPI-2: A versatile high-precision polarimeter |
---|---|
ERA Journal ID | 40237 |
Article Category | Article |
Authors | Bailey, Jeremy (Author), Cotton, Daniel V. (Author), Kedziora-Chudczer, Lucyna (Author), De Horta, Ain (Author) and Maybour, Darren (Author) |
Journal Title | Publications of the Astronomical Society of Australia |
Journal Citation | 37, pp. 1-20 |
Article Number | e004 |
Number of Pages | 20 |
Year | 2020 |
Publisher | Cambridge University Press |
Place of Publication | Australia |
ISSN | 1323-3580 |
1448-6083 | |
Digital Object Identifier (DOI) | https://doi.org/10.1017/pasa.2019.45 |
Web Address (URL) | https://www.cambridge.org/core/journals/publications-of-the-astronomical-society-of-australia/article/abs/hippi2-a-versatile-highprecision-polarimeter/758F4BFD38209FAE755B2A19A9141DE6 |
Abstract | We describe the High-Precision Polarimetric Instrument-2 (HIPPI-2) a highly versatile stellar polarimeter developed at the University of New South Wales. Two copies of HIPPI-2 have been built and used on the 60-cm telescope at Western Sydney University’s (WSU) Penrith Observatory, the 8.1-m Gemini North Telescope at Mauna Kea and extensively on the 3.9-m Anglo-Australian Telescope (AAT). The precision of polarimetry, measured from repeat observations of bright stars in the SDSS g′band, is better than 3.5 ppm (parts per million) on the 3.9-m AAT and better than 11 ppm on the 60-cm WSU telescope. The precision is better at redder wavelengths and poorer in the blue. On the Gemini North 8-m telescope, the performance is limited by a very large and strongly wavelength-dependent TP that reached 1000’s of ppm at blue wavelengths and is much larger than we have seen on any other telescope. |
Keywords | instrumentation: polarimeters, polarisation, techniques: polarimetric |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of New South Wales |
Centre for Astrophysics | |
Western Sydney University | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q76z8/hippi-2-a-versatile-high-precision-polarimeter
70
total views3
total downloads1
views this month0
downloads this month