AAS 203rd Meeting, January 2004
Session 31 X-ray Observations
Oral, Monday, January 5, 2004, 2:00-3:30pm, Centennial III

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[31.05] Unraveling a Precessing Jet: Forty Daily VLBA Observations of SS433

A. J. Mioduszewski, M. P. Rupen, R. C. Walker, G. B. Taylor (NRAO)

The Galactic X-ray binary SS433 is the best known example of a precessing relativistic jet. Here we present the results of a campaign to image SS433 daily with the Very Long Baseline Array over a quarter of its precession period (40 days). These observations provide the best high resolution data set to study the evolution and dynamics of the radio emission in SS433. This unprecedented look at SS433 will allow us to: characterize the newly discovered anomalous equatorial emission; clarify the distance to SS433 (over which there is some debate); and explore the the dynamic and flux density evolution of individual components over a substantial fraction of their lives.

The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.

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Bulletin of the American Astronomical Society, 35#5
© 2003. The American Astronomical Soceity.