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Dynamical Friction. I. General Considerations: the Coefficient of Dynamical Friction.
Abstract
In this paper it is shown that a star must experience dynamicaifriclion, i.e., it must sufier from a sys- tematic tendency to be decelerated in the direction of its motion. `This dynamical friction which stars ex- perience is one of the direct consequences of the fluctuating force acting on a star due to the varying com- plexion of the near neighbors. From considerations of a very general nature it is concluded that the coefficient of dynamical friction, ~, must be of the order of the reciprocal of the time of relaxation of the system. Further, an independent discussion based on the two-body approximation for stellar encounters leads to the following explicit formula for the coefficient of dynamical friction
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Cited by
Read, J. I. (2014) · Journal of Physics G: Nuclear and Particle Physics · doi:10.1088/0954-3899/41/6/063101 · Cited by 489
Stellar processes near the massive black hole in the Galactic center
Alexander, T. (2005) · Physics Reports · doi:10.1016/j.physrep.2005.08.002 · Cited by 302
Laporte, C. F. P., Johnston, K. V., Gómez, F. A., Garavito-Camargo, N., & Besla, G. (2018) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/sty1574 · Cited by 230
Arvanitaki, A., Dimopoulos, S., Galanis, M., Lehner, L., Thompson, J. O., & Van Tilburg, K. (2020) · Physical Review D · doi:10.1103/physrevd.101.083014 · Cited by 175
All-sky dynamical response of the galactic halo to the large magellanic cloud
Conroy, C., Naidu, R. P., Garavito-Camargo, N., Besla, G., Zaritsky, D., Bonaca, A., & Johnson, B. D. (2021) · Nature · doi:10.1038/s41586-021-03385-7 · Cited by 120
Metadata
- Authors
- Chandrasekhar, S.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1943-03
- Volume
- 97
- Pages
- 255
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2026545869
- Cited by
- 1,499
- References
- 0
- FWCI
- 32.25
- Type
- journal article
- Language
- en
- Open access
- closed
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