NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Structure in the Dusty Debris around VegaWe present images of the Vega system obtained with the IRAM Plateau de Bure interferometer at a 1.3 millimeter wavelength with submillijansky sensitivity and approximately 2.5 inches resolution (about 20 AU). These observations clearly detect the stellar photosphere and two dust emission peaks offset from the star by 9.5 inches and 8.0 inches to the northeast and southwest, respectively. These offset emission peaks are consistent with the barely resolved structure visible in previous submillimeter images, and they account for a large fraction of the dust emission. The presence of two dust concentrations at the observed locations is plausible explained by the dynamical influence of an unseen planet of a few Jupiter masses in a highly eccentric orbit that traps dust in Principal mean motion resonances. Based on observations carried out with the IRAM Plateau de Bure Interferometer.
Document ID
20040073765
Acquisition Source
Headquarters
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Wilner, D. J.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Holman, M.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Kuchner, M. J.
Ho, P. T. P.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2002
Publication Information
Publication: The Astrophysical Journal
Volume: 569
Subject Category
Astrophysics
Funding Number(s)
CONTRACT_GRANT: NAG5-10365
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available