Alignment in star-debris disc systems seen by Herschel
Article
Article Title | Alignment in star-debris disc systems seen by Herschel |
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ERA Journal ID | 41989 |
Article Category | Article |
Authors | Greaves, J. S. (Author), Kennedy, G. M. (Author), Thureau, N. (Author), Eiroa, C. (Author), Marshall, J. P. (Author), Maldonado, J. (Author), Matthews, B. C. (Author), Olofsson, G. (Author), Barlow, M. J. (Author), Moro-Martin, A. (Author), Sibthorpe, B. (Author), Absil, O. (Author), Ardila, D. R. (Author), Booth, M. (Author), Broekhoven-Fiene, H. (Author), Brown, D. J. A. (Author), Collier Cameron, A. (Author), Del Burgo, C. (Author), Di Francesco, J. (Author), Eisloffel, J. (Author), Duchene, G. (Author), Ertel, S. (Author), Holland, W. S. (Author), Horner, J. (Author), Kalas, P. (Author), Kavelaars, J. J. (Author), Lestrade, J. -F. (Author), Vican, L. (Author), Wilner, D. J. (Author), Wolf, S. (Author) and Wyatt, M. C. (Author) |
Journal Title | Monthly Notices of the Royal Astronomical Society: Letters |
Journal Citation | 438 (1), pp. L31-L35 |
Number of Pages | 5 |
Year | 2014 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 1745-3925 |
1745-3933 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnrasl/slt153 |
Web Address (URL) | https://academic.oup.com/mnrasl/article/438/1/L31/1007425 |
Abstract | Many nearby main-sequence stars have been searched for debris using the far-infrared Herschel satellite, within the DEBRIS, DUNES and Guaranteed-Time Key Projects. We discuss here 11 stars of spectral types A-M where the stellar inclination is known and can be compared to that of the spatially resolved dust belts. The discs are found to be well aligned with the stellar equators, as in the case of the Sun's Kuiper belt, and unlike many close-in planets seen in transit surveys. The ensemble of stars here can be fitted with a star-disc tilt of ≲10°. These results suggest that proposed mechanisms for tilting the star or disc in fact operate rarely. A few systems also host imaged planets, whose orbits at tens of au are aligned with the debris discs, contrary to what might be expected in models where external perturbers induce tilts. |
Keywords | circumstellar matter; planetary systems; infrared; stars |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
519999. Other physical sciences not elsewhere classified | |
Public Notes | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society: Letters ©: 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | University of St Andrews, United Kingdom |
University of Cambridge, United Kingdom | |
Autonomous University of Madrid, Spain | |
Herzberg Astronomy and Astrophysics Centre, Canada | |
Stockholm Observatory, Sweden | |
University College London, United Kingdom | |
Spanish Astrobiology Centre, Spain | |
Royal Observatory Edinburgh, United Kingdom | |
University of Liege, Belgium | |
California Institute of Technology (Caltech), United States | |
University of Victoria, Canada | |
National Institute of Astrophysics Optics and Electronics, Mexico | |
Karl Schwarzschild Observatory, Germany | |
University of California, United States | |
Joseph Fourier University, France | |
University of New South Wales | |
Paris Observatory, France | |
Center for Astrophysics Harvard and Smithsonian, United States | |
Christian-Albrecht University of Kiel, Germany |
https://research.usq.edu.au/item/q2819/alignment-in-star-debris-disc-systems-seen-by-herschel
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