Physical Conditions at the Origin of the SS433 Jets
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**Session 67 -- Compact Objects/Stellar Winds**
*Oral presentation, Thursday, 2, 1994, 10:00-11:30*

## [67.04] Physical Conditions at the Origin of the SS433 Jets

*T. Koupelis (UWMC)*
We apply the narrow-jet model (a quasi--one-dimensional MHD model for
outflows) to the case of the SS433 jets. Since the observations do not
yet provide enough information to distinguish between the different
theoretically acceptable solutions, we use the model to obtain strict
limits on the values of the characteristic parameters describing
the environment at the origin of the jets. Using the observations on
the value of the magnetic field strength at large distances we obtain
limits for the value of the field at the origin and the period of
rotation of the source. Using the observations on the length of the
acceleration region, the value of the asymptotic speed of the jets,
and energy constraints on the flow we obtain limits on the value of
the temperature at the origin, the mass efflux rate, and the initial
winding of the field lines. We compare our results to ones obtained
by different theoretical models.

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