Cited by 87Astrophysics and Star Formation StudiesStellar, planetary, and galactic studiesGalaxies: Formation, Evolution, Phenomena

TRUNCATED DISKS IN TW Hya ASSOCIATION MULTIPLE STAR SYSTEMS

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Andrews, Sean M., Czekala, Ian, Wilner, D. J., Espaillat, Catherine, Dullemond, C. P., Hughes, A. M.·2010·The Astrophysical Journal

Abstract

We present high angular resolution (down to 0 3 ≈ 13 AU in diameter) Submillimeter Array observations of the 880 μm (340 GHz) thermal continuum emission from circumstellar dust disks in the nearby HD 98800 and Hen 3-600 multiple star systems. In both cases, the dust emission is resolved and localized around one stellar component—the HD 98800B and Hen 3-600A spectroscopic binaries—with no evidence for circum-system material. Using two-dimensional Monte Carlo radiative transfer calculations, we compare the Submillimeter Array interferometer visibilities and broadband spectral energy distributions with truncated disk models to empirically locate the inner and outer edges of both disks. The HD 98800B disk appears to be aligned with the spectroscopic binary orbit, is internally truncated at a radius of 3.5 AU, and extends to only 10–15 AU from the central stars. The Hen 3-600A disk is slightly larger, with an inner edge at ∼1 AU and an outer radius of 15–25 AU. These inferred disk structures compare favorably with theoretical predictions of their truncation due to tidal interactions with the stellar companions.

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  1. [49]49. Lin, D. N. C., & Papaloizou, J. 1993, in Protostars & Planets III, ed. E. Levy & M. S. Matthews (Tucson, AZ: Univ. Arizona Press), 749
  2. [52]52. Mathieu, R. D., Ghez, A. M., Jensen, E. L. N., & Simon, M. 2000, in Protostars & Planets IV, ed. V. Mannings, A. P. Boss, & S. S. Russell (Tucson, AZ: Univ. Arizona Press), 703

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Authors
Andrews, S. M., Czekala, I., Wilner, D. J., Espaillat, C., Dullemond, C. P., & Hughes, A. M.
Affiliations
  • Center for Astrophysics Harvard & Smithsonian (US)
  • Max Planck Institute for Astronomy (DE)
Corresponding author
Andrews, Sean M.
Venue
The Astrophysical Journal
Published
2010-01-19
Volume
710
Issue
1
Pages
462-469
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W2021965181
Cited by
87
References
67
Citations by year
2026: 1 · 2025: 3 · 2024: 1 · 2023: 2 · 2022: 3 · 2021: 4 · 2019: 9 · 2018: 21 · 2017: 8 · 2016: 3 · 2015: 4 · 2014: 4 · 2013: 4 · 2012: 10
FWCI
4.29
Type
journal article
Language
en
Open access
Locations
  • The Astrophysical Journal (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • National Science Foundation (0754568, 0901947, NAS 5-26555)
  • U.S. Department of Defense
  • Smithsonian Institution
  • National Aeronautics and Space Administration (NNG05GI81G, NAS 526555, 526555)
  • Space Telescope Science Institute (NAS5- 26555, 5-26555, 26555)
  • Academia Sinica
  • Smithsonian Astrophysical Observatory
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
Keywords
TW Hya association, HD 98800, multiple star systems, spectroscopic binaries, tidal truncation, submillimeter continuum emission, radiative transfer modeling

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