Paper:	Interstellar Scintillation and Radio Intra-Day Variability
Volume:	300, Radio Astronomy at the Fringe
Page:	199
Authors:	Jauncey, D.L.; Bignall, H.E.; Lovell, J.E.J.; Kedziora-Chudczer, L.; Tzioumis, A.K.; Macquart, J.-P.; Rickett, B.J.
Abstract:	Considerable evidence has now accumulated strongly favoring interstellar scintillation as the mechanism responsible for the rapid intra-day variability seen at cm wavelengths in many flat-spectrum extragalactic radio sources. The discovery of three rapid intra-day variability sources, PKS 0405−385, PKS 1267−326 and J1819+3845, has been largely responsible for this new paradigm. We present here recent results for the two southern sources PKS 0405−385 and PKS 1257−326, together with observations and first results from the MASIV (Micro-Arcsecond Scintillation-Induced Variability) survey that we are undertaking at 5 GHz with the VLA.

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