Locating Planetesimal Belts in the Multiple-planet Systems HD 128311, HD 202206, HD 82943, and HR 8799
Abstract
In addition to the Sun, six other stars are known to harbor multiple planets and debris disks: HD 69830, HD 38529, HD 128311, HD 202206, HD 82943, and HR 8799. In this paper, we set constraints on the location of the dust-producing planetesimals around the latter four systems. We use a radiative transfer model to analyze the spectral energy distributions of the dust disks (including two new Spitzer IRS spectra presented in this paper), and a dynamical model to assess the long-term stability of the planetesimals' orbits. As members of a small group of stars that show evidence of harboring a multiple planets and planetesimals, their study can help us learn about the diversity of planetary systems.
Additional Information
© 2010 American Astronomical Society. Received 2010 April 5; accepted 2010 May 14; published 2010 June 23. We thank Hal Levison for providing skeel-SyMBA for the dynamical simulations, Sebastian Wolf for providing DDS for the SED models, and Alexander Krivov for his careful reading of the manuscript and useful comments. This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, managed for NASA by the California Institute of Technology. A.M.M. acknowledges funding from the Spanish MICINN (Ramón y Cajal Program and grants AYA2009-07304 and CONSOLIDER INGENIO 2010CSD2009-00038), the Michelson Fellowship, and the Spitzer archival grant 40412. She thanks the Isaac Newton Institute for Mathematical Sciences at Cambridge University for support. R.M. acknowledges support from grants by NSF (AST-0806828) and NASA (NNX08AQ65G).Attached Files
Published - MoroMartin2010p11123Astrophys_J.pdf
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Additional details
- Eprint ID
- 19640
- Resolver ID
- CaltechAUTHORS:20100824-131925871
- AYA2009-07304
- Ministerio de Ciencia e Innovación (MICINN)
- CONSOLIDER INGENIO 2010CSD2009-00038
- Ministerio de Ciencia e Innovación (MICINN)
- NASA Michelson Fellowship
- 40412
- NASA
- Cambridge University Isaac Newton Institute for Mathematical Sciences
- AST-0806828
- NSF
- NNX08AQ65G
- NASA
- Created
-
2010-08-25Created from EPrint's datestamp field
- Updated
-
2021-11-08Created from EPrint's last_modified field
- Caltech groups
- Infrared Processing and Analysis Center (IPAC)