Stellar jets with intrinsically variable sources

Details Stellar jets with intrinsically variable sources Stellar jets with intrinsically variable sources

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...364..601r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 364, Dec. 1, 1990, p. 601-610. Research supported by the Universidad Nacion

Other

177

Bow Waves, Magnetohydrodynamics, Plasma Jets, Pre-Main Sequence Stars, Shock Waves, Analytic Functions, Flow Characteristics, Radial Velocity, Time Dependence

Scientific paper

Models for high Mach number, isothermal, pressure-matched jets ejected from sources with variable velocities are presented. It is found that the relaxation of the assumption of a time-independent source allows the complex position-velocity diagrams and multiple bow shock structures observed in some stellar jets to be explained in a straightforward way. Analytic and numerical models are presented for jets with variable velocity sources. A comparison with previously published observations of the HH 46/47 jet is performed which shows how the velocity variations observed along a jet can be used to reconstruct the past time variability of the source. This technique is promising for future studies of the mechanism by which stellar jets are produced.

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