Here is a diagram of the Solar System moving from right to left of page I gather. Given our discussion and conclusion I thought it strange "they" see a bow wave how can we interpret this.. it seems that there would not be a shock wave as one would think all the surrounding space makes up the ball at the end of the string, everything should be travelling at similar speed as you observed.
I wonder if the shock wave has been detected or is it an expectation? Sorry I find it fascinating.
alex
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