>From ennio_sanchez@sri.com Thu Apr 29 11:38:23 1999 >From: "Ennio R. Sanchez" >MIME-Version: 1.0 >To: canfield@physics.montana.edu >Subject: Sigmoid in AR8524? >Content-Transfer-Encoding: 7bit > >Dear Dr. Canfield, > >It was a pleasure listening to your poster presentation last week at the >Space Weather Workshop. Your studies on eruptive coronal activity are >frankly very exciting. > >I have been paying attention recently to the evolution of region 8524, >which in my naive appreciation appears to be showing sigmoidal >morphology, not to mention a pretty good area. The region in question >had the following characteristics today at 00:40 UT: > >NMBR LOCATION LO AREA Z LL NN MAG TYPE >8524 N22W02 033 0300 EKO 13 19 BETA > >Am I correct in my interpretation of the sigmoidal morphology? Would you >think that a major eruption is imminent considering the combination of >area/morphology as per Canfield et al., GRL, 26, 627, 1999? > >With my best regards > >Ennio R. Sanchez >Sr. Research Physicist >SRI International >Menlo Park, CA