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physics.space-ph2018★ 52 cited
In Situ Observations of Preferential Pickup Ion Heating at an Interplanetary Shock
E. J. Zirnstein, D. J. McComas, R. Kumar +6
Non-thermal pickup ions (PUIs) are created in the solar wind (SW) by charge-exchange between SW ions (SWIs) and slow interstellar neutral atoms. It has long been theorized, but not…
physics.space-ph2017★ 85 cited
Interstellar Pickup Ion Observations to 38 AU
D. J. McComas, E. J. Zirnstein, M. Bzowski +9
We provide the first direct observations of interstellar H+ and He+ pickup ions in the solar wind from 22 AU to 38 AU. We use the Vasyliunas and Siscoe model functional form to qua…