Are Debris Disks and Massive Planets Correlated?

Using data from the Spitzer Space Telescope Legacy Science Program Formation and Evolution of Planetary Systems (FEPS), we have searched for debris disks around nine FGK stars (2-10 Gyr), known from radial velocity (RV) studies to have one or more massive planets. Only one of the sources, HD 38529,...

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Bibliographic Details
Published in:The Astrophysical journal 2007-04, Vol.658 (2), p.1312-1321
Main Authors: Moro-Martín, Amaya, Carpenter, John M, Meyer, Michael R, Hillenbrand, Lynne A, Malhotra, Renu, Hollenbach, David, Najita, Joan, Henning, Thomas, Kim, Jinyoung S, Bouwman, Jeroen, Silverstone, Murray D, Hines, Dean C, Wolf, Sebastian, Pascucci, Ilaria, Mamajek, Eric E, Lunine, Jonathan
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
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Summary:Using data from the Spitzer Space Telescope Legacy Science Program Formation and Evolution of Planetary Systems (FEPS), we have searched for debris disks around nine FGK stars (2-10 Gyr), known from radial velocity (RV) studies to have one or more massive planets. Only one of the sources, HD 38529, has excess emission above the stellar photosphere; at 70 km the signal-to-noise ratio in the excess is 4.7, while at l< 30 k m there is no evidence of excess. The remaining sources show no excesses at any Spitzer wavelengths. Applying survival tests to the FEPS sample and the results for the FGK survey recently published in Bryden et al., we do not find a significant correlation between the frequency and properties of debris disks and the presence of close-in planets. We discuss possible reasons for the lack of a correlation.
ISSN:0004-637X
1538-4357
DOI:10.1086/511746