The formation of interstellar jets by the convergence of supersonic conical flows

Details The formation of interstellar jets by the convergence of supersonic conical flows The formation of interstellar jets by the convergence of supersonic conical flows

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...192..287c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 192, no. 1-2, March 1988, p. 287-294. NASA-sponsored research.

Astronomy and Astrophysics

Astrophysics

76

Conical Flow, Interstellar Matter, Stellar Winds, Supersonic Flow, Cosmic Plasma, Focusing, Plasma Jets, T Tauri Stars

Scientific paper

The interaction of a stellar wind with a non-uniform environment leads, under the assumption of steady state, to the formation of an ovoidal cavity with acute ending tips. The stellar wind recollected by the walls of the cavity ends up being deposited at the tips. Here it is shown that this focusing effect leads to the formation of a narrow cylindrical stream or "jet" of reshocked stellar wind matter moving directly away from the star with a large velocity. A "typical" T Tauri star may produce jets with densities ≡103- 104cm-3, velocities ≡100 kms-1, widths ≡10-5- 10-3pc over a length ≡10-3- 10-2pc. The opening angles are ⪉7°.

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