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Warm debris disks candidates in transiting planets systems

Ribas, Á. and Merín, B. and Ardila, D. R. and Bouy, H. (2012) Warm debris disks candidates in transiting planets systems. Astronomy and Astrophysics, 541 . Art. No. A38. ISSN 0004-6361.

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We have bandmerged candidate transiting planetary systems (from the Kepler satellite) and confirmed transiting planetary systems (from the literature) with the recent Wide-field Infrared Survey Explorer (WISE) preliminary release catalog. We have found 13 stars showing infrared excesses at either 12 μm and/or 22 μm. Without longer wavelength observations it is not possible to conclusively determine the nature of the excesses, although we argue that they are likely due to debris disks around the stars. If confirmed, our sample ~doubles the number of currently known warm excess disks around old main sequence stars. The ratios between the measured fluxes and the stellar photospheres are generally larger than expected for Gyr-old stars, such as these planetary hosts. Assuming temperature limits for the dust and emission from large dust particles, we derive estimates for the disk radii. These values are comparable to the planet’s semi-major axis, suggesting that the planets may be stirring the planetesimals in the system.

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Additional Information:© 2012 ESO. Article published by EDP Sciences. Received 20 October 2011; Accepted 27 February 2012. Published online 25 April 2012. We thank the referee for valuable comments that helped improving the contents of this paper. This work has been possible thanks to the support from the ESA Trainee and ESAC Space Science Faculty and of the Herschel Science Centre. This publication is based on observations made with the Kepler Spacecraft. Funding for this mission is provided by National Aeronautics and Space Administration’s Science Mission Directorate (NASA). This study also makes use of VOSA, developed under the Spanish Virtual Observatory project supported from the Spanish MICINN through grant AyA2008-02156; data products from the Wide-field Infrared Survey Explorer, a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory (JPL)/California Institute of Technology (Caltech); the NASA Infrared Processing and Analysis Center (IPAC) Science Archive and the NASA/IPAC/NExScI Star and Exoplanet Database, operated by JPL/Caltech, and funded by NASA; the SIMBAD database and the Vizier service, operated at the Centre de Données astronomiques de Strasbourg, France; the data products from the Two Micron All Sky Survey (2MASS), a joint project of the University of Massachusetts and IPAC/Caltech, funded by NASA and the National Science Foundation; the Multimission Archive at the Space Telescope Science Institute (MAST). STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. Support for MAST for non-HST data is provided by the NASA Office of Space Science via grant NNX09AF08G and by other grants and contracts.
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NASA Science Mission DirectorateUNSPECIFIED
Subject Keywords:planetary systems; planet-disk interactions
Record Number:CaltechAUTHORS:20120625-102703871
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Official Citation:Warm debris disks candidates in transiting planets systems Á. Ribas, B. Merín, D. R. Ardila and H. Bouy A&A 541 A38 (2012) DOI:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32059
Deposited By: Jason Perez
Deposited On:25 Jun 2012 21:29
Last Modified:03 Oct 2019 03:57

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