Summary
The motion of a one-dimensional driven shock in an inhomogeneous medium is considered. It is found that the driving piston closely controls the shock behavior in regions of increasing density, with essentially free shock propagation occurring in regions of decreasing density. These results are used in discussing the gross features of a head-on collision between two stars.
Riassunto
Si studia il moto di un’urto guidato unidimensionale in un mezzo omogeneo. Si trova che il pistone motore controlla strettamente il comportamento dell’urto in zone di densità crescente, mentre nelle regioni di densità decrescente si ha essenzialmente una propagazione libera dell’urto. Si usano questi risultati per discutere le caratteristiche generiche di una collisione frontale fra due stelle.
Реэюме
Рассматривается движение одномерной движушейся ударной волны в неоднородной среде. Найдено, что движущийся порщень внимательно контролирует поведение ударной волны в областях повыщенной плотности, причем в областях пониженной плотности происходит, по сушеству, свободное распространение ударной волны. Эти реэультаты испольэуются при обсуждении основных характеристик лобового столкновения между двумя эвеэдами.
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References
L. Woltjer:Nature,201, 803 (1964).
T. Gold, W. I. Axford andE. C. Ray:Quasi-Stellar Sources and Gravitational Collapses, ed.I. Robinson, A. E. Schild andE. L. Schucking (Chicago, 1965), p. 93.
L. Spitzer andW. C. Saslaw:Astrophys. Journ.,143, 400 (1966).
R. Courant andK. O. Friedrichs:Supersonic Flow and Shock Waves (New York, 1948), p. 151.
M. Schwarzschild:Structure and Evolution of the Stars (Princeton, 1958).
J. Hazlehurst:Advances in Astronomy and Astrophysics, vol.1, ed.Z. Kopal (New York, 1962), p. 1.
R. D. Richtmyer:Difference Methods of Initial Value Problems (New York, 1957).
S. A. Colgate andR. H. White:Astrophys. Journ.,143, 626 (1966).
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This work was supported by the U.S. Air Force Office of Scientific Research under Contract AF49(638)1527 and by the National Aeronautics and Space Administration under Grant NsG-382. Mr.De Young is supported by a National Aeronautics and Space Administration traineeship.
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De Young, D.S., Axford, W.I. Stellar collisions. Nuovo Cimento B (1965-1970) 50, 199–206 (1967). https://doi.org/10.1007/BF02710879
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DOI: https://doi.org/10.1007/BF02710879