Multi-wavelength aperture polarimetry of debris disc host stars
Article
Marshall, Jonathan P, Cotton, Daniel V, Bott, Kimberly, Bailey, Jeremy, Kedziora-Chudczer, Lucyna and Brown, Emma. 2023. "Multi-wavelength aperture polarimetry of debris disc host stars." Monthly Notices of the Royal Astronomical Society. 522 (2), pp. 2777-2800. https://doi.org/10.1093/mnras/stad979
Article Title | Multi-wavelength aperture polarimetry of debris disc host stars |
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ERA Journal ID | 1074 |
Article Category | Article |
Authors | Marshall, Jonathan P, Cotton, Daniel V, Bott, Kimberly, Bailey, Jeremy, Kedziora-Chudczer, Lucyna and Brown, Emma |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 522 (2), pp. 2777-2800 |
Number of Pages | 24 |
Year | 2023 |
Publisher | Oxford University Press |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/stad979 |
Web Address (URL) | https://academic.oup.com/mnras/article/522/2/2777/7110426 |
Abstract | Debris discs around main sequence stars have been extensively characterized from infrared to millimetre wavelengths through imaging, spectroscopic, and total intensity (scattered light and/or thermal emission) measurements. Polarimetric observations have only been used sparingly to interpret the composition, structure, and size of dust grains in these discs. Here, we present new multiwavelength aperture polarization observations with parts-per-million sensitivity of a sample of twelve bright debris discs, spanning a broad range of host star spectral types, and disc properties. These measurements were mostly taken with the HIgh Precision Polarimetric Instrument on the Anglo-Australian Telescope. We combine these polarization observations with the known disc architectures and geometries of the discs to interpret the measurements. We detect significant polarization attributable to circumstellar dust from HD 377 and HD 39060, and find tentative evidence for HD 188228 and HD 202628. |
Keywords | (ism): dust; (stars): circumstellar matter; techniques: polarimetric |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 5101. Astronomical sciences |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Academia Sinica Institute of Astronomy and Astrophysics, Taiwan |
Centre for Astrophysics | |
Monterey Institute for Research in Astronomy, United States | |
Western Sydney University | |
University of California Riverside, United Sates | |
University of New South Wales |
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https://research.usq.edu.au/item/z2654/multi-wavelength-aperture-polarimetry-of-debris-disc-host-stars
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