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Elsevier, New Astronomy Reviews, 8-10(43), p. 553-557

DOI: 10.1016/s1387-6473(99)00053-6

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VLBA multi-frequency monitoring of SS433

Journal article published in 1970 by Z. Paragi ORCID, R. C. Vermeulen, I. Fejes, R. T. Schilizzi, R. E. Spencer, A. M. Stirling
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This paper is available in a repository.

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Abstract

We present results of VLBA observations of SS433 at two epochs at 5, 8.4, and 15 GHz. The AU-scale region of the source is resolved and shows the familiar quasi-symmetric core-jet structures. But at another epoch, the maps show bright knots ejected a few days before the observation, while the core-complex disappeared. The bright jet components are completely depolarised with fractional polarization less than 0.5%. We also present the first VLBI image of SS433 at 22 GHz.