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The Influence of Forming Companions on the Spectral Energy Distributions of Stars with Circumstellar Discs

  • Olga V. Zakhozhay (a1)
Abstract
Abstract

We study a possibility to detect signatures of brown dwarf companions in a circumstellar disc based on spectral energy distributions. We present the results of spectral energy distribution simulations for a system with a 0.8 M central object and a companion with a mass of 30 M J embedded in a typical protoplanetary disc. We use a solution to the one-dimensional radiative transfer equation to calculate the protoplanetary disc flux density and assume, that the companion moves along a circular orbit and clears a gap. The width of the gap is assumed to be the diameter of the brown dwarf Hill sphere. Our modelling shows that the presence of such a gap can initiate an additional minimum in the spectral energy distribution profile of a protoplanetary disc at λ = 10–100 μm. We found that it is possible to detect signatures of the companion when it is located within 10 AU, even when it is as small as 3 M J. The spectral energy distribution of a protostellar disc with a massive fragment (of relatively cold temperature ~400 K) might have a similar double peaked profile to the spectral energy distribution of a more evolved disc that contains a gap.

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Corresponding author
Email: zakhozhay.olga@gmail.com
References
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ALMA Partnership, et al. 2015, ApJL, 808, 1, L3
Alexander R. D., Clarke C. J., & Pringle J. E. 2006, MNRAS, 369, 216
Andrews S. M., et al. 2016, ApJL, 880, 2, L40
Baraffe I., Chabrier G., Allard F., & Hauschildt P. H. 1998, A&A, 337, 403
Baraffe I., Homeier D., Allard F., & Chabrier G. 2015, A&A, 577, A42
Chirikov B. V. 1979, PhR, 52, 263
Dipierro G., Price D., Laibe G., Hirsh K., Cerioli A., & Lodato G. 2015, MNRAS, 453, L73
Dipierro G., Laibe G., Price D. J., & Lodato G. 2016, MNRAS, 459, L1
Dodson-Robinson S. E., & Salyk C. 2011, ApJ, 738, 131
Dong R., Vorobyov E., Pavlyuchenkov Y., Chiang E., & Liu H. B. 2016, ApJ, 823, 141
Dullemond C. P., & Dominik C. 2005, A&A, 434, 971
Dullemond C. P., Dominik C., & Natta A. 2001, ApJ, 560, 957
Fouchet L., Gonzalez J.-F., & Maddison S. T. 2010, A&A, 518, A16
Gonzalez J.-F., Pinte C., Maddison S. T., Ménard F., & Fouchet L. 2012, A&A, 547, A58
Ma B., & Ge J. 2014, MNRAS, 439, 2781
Meru F., & Bate M. R. 2010, MNRAS, 406, 2279
Meru F., Quanz S. P., Reggiani M., Baruteau C., & Pineda J. E. 2014, arXiv:1411.5366
Nesvold E. R., & Kuchner M. J. 2015, ApJ, 798, 83
Pinilla P., Benisty M., & Birnstiel T. 2012, A&A, 545, A81
Pinilla P., de Juan Ovelar M., Ataiee S., Benisty M., Birnstiel T., van Dishoeck E. F., & Min M. 2015, A&A, 573, A9
Pinilla P., Klarmann L., Birnstiel T., Benisty M., Dominik C., & Dullemond C. P. 2016, A&A, 585, A35
Stamatellos D., & Whitworth A. P. 2009, MNRAS, 392, 413
Stamatellos D., Maury A., Whitworth A., & Andrè P. 2011, MNRAS, 413, 1787
van der Marel N., Verhaar B. W., van Terwisga S., Merin B., Herczeg G., Ligterink N. F. W., & van Dishoeck E. F. 2016, A&A, 592, A126
Varnière P., et al. 2006, ApJ, 637, L125
Vorobyov E. I., & Basu S. 2010, ApJ, 719, 1896
Vorobyov E. I., Zakhozhay O. V., & Dunham M. M. 2013, MNRAS, 433, 3256
Wisdom J. 1980, AJ, 85, 1122
Woitke et al. 2016, A&A, 586, A103
Zakhozhay O. V. 2015, Kinematics and Physics of Celestial Bodies, 31, 4, 184
Zakhozhay O. V., Vorobyov E. I., & Dunham M. M. 2013, Memorie della Società Astronomica Italiana, 84, 4, 880
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Publications of the Astronomical Society of Australia
  • ISSN: 1323-3580
  • EISSN: 1448-6083
  • URL: /core/journals/publications-of-the-astronomical-society-of-australia
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