Bibcode
Rozyczka, M.; Tenorio-Tagle, G.
Referencia bibliográfica
Astronomy and Astrophysics (ISSN 0004-6361), vol. 245, no. 2, May 1991, p. 616-624. Research supported by Polish Academy of Sciences.
Fecha de publicación:
5
1991
Número de citas
2
Número de citas referidas
1
Descripción
The propagation of interstellar jets is examined by means of numerical
modeling. The jets result from the injection of an overpressured
supersonic beam of gas into the interstellar medium, and have been
followed time dependently up to distances of 0.2 pc from their injection
point while preserving a high degree of collimation. As the jets
propagate, their internal structure undergoes a rapid and complex
evolution. The working surface shocks (incident, reflected and Mach
disk) for example, almost periodically evolve into crossing shocks that
recollimate the injected matter, while new sets of shocks form at the
head of the jet. This internal evolution also causes important changes
in the shape of the leading bow shock, while the earliest established
crossing shocks approach a steady state location within the jet
structure. The paper focuses on the rapid jet evolution, the drastic
changes at the head of the jet, the formation and appearance of crossing
shocks, and the relation of the latter to the physical conditions of the
background medium.