Abstract:
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We report the results of more than 30  h of VLA monitoring at 6 cm of the radio
emitting X-ray binary LSI+61303.  Small amplitude (4 mJy) radio flares have
been detected superposed onto the early decay of the expected periodic radio
outburst of this source.  Such kind of microflares seem to exhibit a recurrence
period of 1.4 h.  Among different possibilities, we interpret them tentatively
as caused by secondary luminosity driven shocks.  In addition, we report and
discuss the detection of linear polarization in LSI+61303 at the 2% level
during one of the observing sessions.