LOCATING PLANETESIMAL BELTS IN THE MULTIPLE-PLANET SYSTEMS HD 128311, HD 202206, HD 82943, AND HR 8799

Journal Article · Sat Jul 10 00:00:00 EDT 2010 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/717/2/1123· OSTI ID:21455180

Moro-Martin, Amaya ^[1]; Malhotra, Renu ^[2]; Bryden, Geoffrey ^[3]; Rieke, George H; Su, Kate Y. L. ^[4]; Beichman, Charles A ^[5]; Lawler, Samantha M ^[6]

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1. Department of Astrophysics, Center for Astrobiology (CSIC-INTA), Ctra. de Ajalvir, km 4, Torrejon de Ardoz, 28850, Madrid (Spain)
2. Department of Planetary Sciences, University of Arizona, 1629 E. University Boulevard, Tucson, AZ 85721 (United States)
3. Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)
4. Steward Observatory, University of Arizona, 933 North Cherry Ave., Tucson, AZ 85721 (United States)
5. NASA Exoplanet Science Institute, California Institute of Technology, Pasadena, CA 91125 (United States)
6. Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1 (Canada)

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.

• OSTI ID: 21455180
• Journal Information: Astrophysical Journal, Vol. 717, Issue 2; Other Information: DOI: 10.1088/0004-637X/717/2/1123; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
DUSTS
ENERGY SPECTRA
PLANETS
RADIANT HEAT TRANSFER
SUN
ENERGY TRANSFER
HEAT TRANSFER
MAIN SEQUENCE STARS
SPECTRA
STARS