Further constraints on the presence of a debris disk in the multiplanet system gliese 876

Article


Shankland, P. D., Blank, D. L., Boboltz, D.A., Lazio, T. J. W. and White G.. 2008. "Further constraints on the presence of a debris disk in the multiplanet system gliese 876 ." The Astronomical Journal. 135 (6), pp. 2194-2198. https://doi.org/10.1088/0004-6256/135/6/2194
Article Title

Further constraints on the presence of a debris disk in the multiplanet system gliese 876

ERA Journal ID1048
Article CategoryArticle
AuthorsShankland, P. D., Blank, D. L., Boboltz, D.A., Lazio, T. J. W. and White G.
Journal TitleThe Astronomical Journal
Journal Citation135 (6), pp. 2194-2198
Number of Pages5
Year2008
PublisherIOP Publishing
Place of PublicationUnited States
ISSN0004-6256
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.

KeywordsCircumstellar 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 AffiliationsJames Cook University
United States Naval Observatory, United States
Naval Research Laboratory, United States
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