A very bright radio flare of SS433

Astronomy and Astrophysics – Astronomy

Scientific paper

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Radio, Millimeter, Infra-Red, Optical, X-Ray, Request For Observations, Binaries, Black Holes, Transients

Scientific paper

The famous high-mass X-ray binary, SS433 is in the very intense radio flaring state during the last two weeks. 23 August 2010 (MJD 55432.76) in the monitoring program with the RATAN-600 radio telescope (SAO RAS) we detected the highest fluxes at 2.1, 4.8, 7.7 11.2 and 22 GHz, and the spectrum can be well fitted by the power law spectrum: S_nu[Jy]=4.4nu^(-0.8)[GHz]. Such intensive event is relatively rare (see also, ATEL #1819) and by almost three times higher than a quiet radio state of SS433 (marked in the plot).

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