Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-22T17:56:14.330Z Has data issue: false hasContentIssue false

Accretion in common envelope evolution

Published online by Cambridge University Press:  30 December 2019

Luke Chamandy
Affiliation:
Department of Physics and Astronomy, University of Rochester, Rochester NY 14618, USA emails: [email protected], [email protected], [email protected]
Adam Frank
Affiliation:
Department of Physics and Astronomy, University of Rochester, Rochester NY 14618, USA emails: [email protected], [email protected], [email protected]
Eric G. Blackman
Affiliation:
Department of Physics and Astronomy, University of Rochester, Rochester NY 14618, USA emails: [email protected], [email protected], [email protected]
Jonathan Carroll-Nellenback
Affiliation:
Department of Physics and Astronomy, University of Rochester, Rochester NY 14618, USA emails: [email protected], [email protected], [email protected]
Baowei Liu
Affiliation:
Department of Physics and Astronomy, University of Rochester, Rochester NY 14618, USA emails: [email protected], [email protected], [email protected]
Yisheng Tu
Affiliation:
Department of Physics and Astronomy, University of Rochester, Rochester NY 14618, USA emails: [email protected], [email protected], [email protected]
Jason Nordhaus
Affiliation:
National Technical Institute for the Deaf, Rochester Institute of Technology, NY 14623, USA Center for Computational Relativity and Gravitation, Rochester Institute of Technology, NY 14623, USA
Zhuo Chen
Affiliation:
Department of Physics and Astronomy, University of Rochester, Rochester NY 14618, USA emails: [email protected], [email protected], [email protected]
Bo Peng
Affiliation:
Department of Physics and Astronomy, University of Rochester, Rochester NY 14618, USA emails: [email protected], [email protected], [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Common envelope evolution (CEE) occurs in some binary systems involving asymptotic giant branch (AGB) or red giant branch (RGB) stars, and understanding this process is crucial for understanding the origins of various transient phenomena. CEE has been shown to be highly asymmetrical and global 3D simulations are needed to help understand the dynamics. We perform and analyze hydrodynamic CEE simulations with the adaptive mesh refinement (AMR) code AstroBEAR, and focus on the role of accretion onto the companion star. We bracket the range of accretion rates by comparing a model that removes mass and pressure using a subgrid accretion prescription with one that does not. Provided a pressure-release valve, such as a bipolar jet, is available, super-Eddington accretion could be common. Finally, we summarize new results pertaining to the energy budget, and discuss the overall implications relating to the feasibility of unbinding the envelope in CEE simulations.

Type
Contributed Papers
Copyright
© International Astronomical Union 2019 

References

Armitage, P. J., & Livio, M. 2000, ApJ, 532, 540 CrossRefGoogle Scholar
Carroll-Nellenback, J. J., Shroyer, B., Frank, A., & Ding, C. 2013, J. of Comp. Phys., 236, 461 CrossRefGoogle Scholar
Chamandy, L., Frank, A., Blackman, E., et al. 2018, MNRAS 480, 1898 CrossRefGoogle Scholar
Chamandy, L., Tu, Y., Blackman, E., Carroll-Nellenback, J., Liu, B., Nordhaus, J., & Frank, A. 2018, In preparationGoogle Scholar
De Marco, O. & Izzard, R. G. 2017, PASA, 34, 1 CrossRefGoogle Scholar
Iaconi, R., Reichardt, T., Staff, J., et al. 2017, MNRAS, 464, 4028 CrossRefGoogle Scholar
Iaconi, R., De Marco, O., Passy, J.-C. & Staff, J. 2018, MNRAS, 477, 2349 CrossRefGoogle Scholar
Ivanova, N., Justham, S., Chen, X., et al. 2017, ARAA, 21, 59 Google Scholar
Jones, D., & Boffin, H. M. J. 2017, Nat. Ast., 1, 117 CrossRefGoogle Scholar
Krumholz, M. R., McKee, C. F., & Klein, R. I. 2004, ApJ, 611, 399 CrossRefGoogle Scholar
Moreno Méndez, E., López-Cámara, D., & De Colle, F. 2017, MNRAS, 470, 2929 CrossRefGoogle Scholar
Ohlmann, S. T., Röpke, F. K., Pakmor, R., & Springel, V. 2016, ApJ (Letters), 816, L9 Google Scholar
Ohlmann, S. T., Röpke, F. K., Pakmor, R., & Springel, V. 2017, A&A, 599, A5 Google Scholar
Paczyński, B. 1976, IAUS, 73, 75 Google Scholar
Ricker, P., & Taam, R. 2012, ApJ, 746, 74 CrossRefGoogle Scholar
Soker, N. 2017, MNRAS, 471, 4839 CrossRefGoogle Scholar