Molecular Emissions from Circumstellar Envelopes in the Presence of a Binary Companion

Ngoc Hung Tran, Trung Van Dinh, Dong Bang Pham, Thanh Bao Thi Nguyen
Author affiliations

Authors

  • Ngoc Hung Tran Institute of Physics, Vietnam Academy of Science and Technology and Graduate University of Science and Technology, Vietnam Academy of Science and Technology
  • Trung Van Dinh Institute of Physics, Vietnam Academy of Science and Technology
  • Dong Bang Pham Institute of Physics, Vietnam Academy of Science and Technology and Graduate University of Science and Technology, Vietnam Academy of Science and Technology
  • Thanh Bao Thi Nguyen Institute of Physics, Vietnam Academy of Science and Technology and Graduate University of Science and Technology, Vietnam Academy of Science and Technology

DOI:

https://doi.org/10.15625/0868-3166/15391

Keywords:

circumsteller envelope, molecular emission

Abstract

Following our previous work on the hydrodynamic simulations of the structure of circumstellar envelopes in the presence of a binary companion, in this paper we present the results of radiative transfer calculations for molecular emission line HC3N J=5 – 4 from these simulated circumstellar envelopes. We show that the molecular line emission traces closely the spiral pattern and the associated density enhancement induced by the presence of the binary companion. The molecular emission provides the spatial kinematics of the features within the envelope, which is valuable for estimating the orbital parameters of the binary system and for inferring the physical conditions of the gas within the envelope. We also show that the appearance of the molecular emission depends on the viewing angle resulting in a range of shapes from the spiral pattern to ring-like features, similar to that observed recently in a number of circumstellar envelopes at high angular resolution.

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References

S. Hofner and H. Olofsson, Annual Review of Astronomy and Astrophysics 26 (2018) 92

H. Kim, I.T. Hsieh, S.Y. Liu, R.E. Taam, The Astrophysical Journal 776 (2013) 86

H. Kim, T. Alfonso, S.Y. Liu, et al., Nature Astronomy 1 (2017) 60

M. Maercker, S. Mohamed, W.H.T. Vlemmings et al., Nature 490 (2012) 232

M. Morris, Publications of the Astronomical Society of the Pacific 99 (1987) 1115

N. Mastrodemos, M. Morris, The Astrophysical Journal 523 (1999) 357

Tran Ngoc Hung, Dinh Van Trung, Nguyen Thi Thanh Bao, Bui Van Hai, Pham Dong Bang, Communications in Physics 29 (2019) No. 3SI 433

A. Mignone, G. Bodo, S. Massaglia, T. Matsakos, O. Tesileanu, C. Zanni, A. Ferrari, The Astrophysical Supplement Series 170 (2007) 228

P. Audinos, C. Kahane, R. Lucas, Astronomy and Astrophysics 287 (1994) L5

Dinh-V-Trung, J. Lim, The Astrophysical Journal 701 (2009) 292

H. Kim, R.E. Taam, The Astrophysical Journal 759 (2012) 59

H. Kim, S.Y. Liu, R.E. Taam, The Astrophysical Journal Supplement Series 243 (2019) 35

M. Guelin, N.A. Patel, M. Bremer, J. Cernicharo et al, Astronomy and Astrophysics 610 (2018) A4

Dinh-V-Trung, J. Lim, The Astrophysical Journal 678 (2008) 303

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Published

06-01-2021

How to Cite

[1]
N. H. Tran, T. V. Dinh, D. B. Pham, and T. B. T. Nguyen, “Molecular Emissions from Circumstellar Envelopes in the Presence of a Binary Companion”, Comm. Phys., vol. 31, no. 1, p. 35, Jan. 2021.

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Section

Papers
Received 18-06-2020
Accepted 20-10-2020
Published 06-01-2021

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