Locating planetesimal belts in the multiple-planet systems HD 128311, HD 202206, HD 82943, and HR 8799

Amaya Moro-Martín, Renu Malhotra, Geoffrey Bryden, George H. Rieke, Kate Y.L. Su, Charles A. Beichman, Samantha M. Lawler

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)1123-1139
Number of pages17
JournalAstrophysical Journal
Volume717
Issue number2
DOIs
StatePublished - 2010

Keywords

  • Kuiper Belt: general
  • circumstellar matter
  • infrared: stars
  • planetary systems
  • stars: individual (HD 128311, HD 202206, HR 8799, HD 82943)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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