Not rogue. And I'm unsure if wave is the correct term. I think what they're implying is that when passing through a "fold" in the heliospheric current sheet (ht

Not rogue. And I'm unsure if wave is the correct term. I think what they're implying is that when passing through a "fold" in the heliospheric current sheet (https://en.wikipedia.org/wiki/Heliospheric_current_sheet https://en.wikipedia.org/wiki/Heliospheric_current_sheet) the polarity flips. I presume that the tighter the fold, the less distance between the polarity change, the greater the induced current; tight enough and the polarity is different between two close points on earth, inducing a greater than normal current. But I didn't pay enough attention in high school physics, so....