Further constraints on the presence of a debris disk in the multiplanet system gliese 876
Article
Article Title | Further constraints on the presence of a debris disk in the multiplanet system gliese 876 |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Shankland, P. D., Blank, D. L., Boboltz, D.A., Lazio, T. J. W. and White G. |
Journal Title | The Astronomical Journal |
Journal Citation | 135 (6), pp. 2194-2198 |
Number of Pages | 5 |
Year | 2008 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0004-6256/135/6/2194 |
Web Address (URL) | https://iopscience.iop.org/article/10.1088/0004-6256/135/6/2194 |
Abstract | Using both the Very Large Array (VLA) at 7 mm wavelength, and the Australia Telescope Compact Array (ATCA) at 3 mm, we have searched for microwave emission from cool dust in the extrasolar planetary system Gliese 876 (Gl 876). Having detected no emission above our 3σ detection threshold of 135 μJy, we rule out any dust disk with either a mass greater than 0.0006 M ⊕ or less than 250 AU across. This result improves on previous detection aperture thresholds by an order of magnitude, and it has some implications for the dynamical modeling of the system. It also is consistent with the Greaves et al. hypothesis that relates the presence of a debris disk to close-in planets. Due to the dust-planetesimal relationship, our null result may also provide a constraint on the population or composition of the dust and small bodies around this nearby M dwarf. © 2008. The American Astronomical Society. All rights reserved. |
Keywords | Circumstellar matter; Kuiper Belt; Planetary systems; Planets and satellites: general; Stars: individual (Gl 876) |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | James Cook University |
United States Naval Observatory, United States | |
Naval Research Laboratory, United States |
https://research.usq.edu.au/item/yy5w4/further-constraints-on-the-presence-of-a-debris-disk-in-the-multiplanet-system-gliese-876
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