Subject: solitary waves from previous experiments From: Bertrand Lefebvre Date: Sat, 31 Jan 2009 19:05:41 -0500 To: Walter Gekelman CC: Li-Jen Chen , Paul Kintner , Jolene Pickett Dear all, Just a very short summary of where we are here before next week's experiments. After looking at every bit of data recorded from the previous experiments, I could only find ~10 structures which may exhibit clear enough electron-hole signatures. All of them have a velocity very close to the electron thermal velocity and a parallel size of ~ 3 to 15 Debye lengths. I haven't found any in the experiments with the probes perpendicular to B, so cannot comment on the perpendicular size. All those examples and derived parameters (velocity, size, etc.) can be found there: http://www.spaceplasma.unh.edu/~bertrand/ucla/esw_examples_20090131.pdf Examples are organized by experiment (using the original names with afterglow time, beam voltage, B, etc.). Each example is shown on two pairs of probes (in 2 different figures), with time series of potentials on the top panel and electric field in the lower one. The caption contains all the measured and derived parameters for each case. Looking forward to meeting you next week, Bertrand -- Bertrand Lefebvre EOS Space Science Center phone: +1 603 862-4379 University of New Hampshire office: Morse Hall 307 Durham, NH 03824-3525 http://www.spaceplasma.unh.edu