Interstellar Medium Parameters in Front of the External Bow Shock
International Journal of Astrophysics and Space Science
Volume 7, Issue 2, April 2019, Pages: 21-26
Received: Jul. 15, 2019; Accepted: Aug. 13, 2019; Published: Aug. 26, 2019
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Pavel Alexandrovich Sedykh, Department of Physics, Irkutsk National Research Technical University, Irkutsk, Russian Federation
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We know that it is the front of the Earth’s bow shock where the solar wind kinetic energy flux is transformed into the other kinds the most intensively. In our previous studies, we obtained important relationships that enable calculating the key parameters at transition through the Earth’s bow shock front. One of the most important sources of information on physical processes at the heliosphere boundary are the Voyager 1 and 2 spacecrafts. Since both the solar wind and interstellar medium are supersonic streams, two shocks are formed when flowing around the heliopause. The internal shock, in which the solar wind decelerates to subsonic velocity, is called the heliospheric shock. In the external bow shock, the interstellar gas supersonic flux is decelerated. The aim of this paper is to generalize the previously obtained equations to the processes in the external bow shock region. If Voyager-1 was equipped with a greater set of measuring instruments, we could have already provided estimations of the interstellar medium key parameters, and described in physical terms what this medium is, using relationships and equations from our studies.
External Bow Shock, Interstellar Medium, Set of Measuring Instruments, Computing of Parameters
To cite this article
Pavel Alexandrovich Sedykh, Interstellar Medium Parameters in Front of the External Bow Shock, International Journal of Astrophysics and Space Science. Vol. 7, No. 2, 2019, pp. 21-26. doi: 10.11648/j.ijass.20190702.11
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