Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 39, issue 3
Articles | Volume 39, issue 3
https://doi.org/10.5194/angeo-39-379-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-39-379-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 39, issue 3
Regular paper
 | 
05 May 2021
Regular paper |  | 05 May 2021

Warm protons at comet 67P/Churyumov–Gerasimenko – implications for the infant bow shock

Charlotte Goetz, Herbert Gunell, Fredrik Johansson, Kristie LLera, Hans Nilsson, Karl-Heinz Glassmeier, and Matthew G. G. T. Taylor

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Short summary
Boundaries in the plasma around comet 67P separate regions with different properties. Many have been identified, including a new boundary called an infant bow shock. Here, we investigate how the plasma and fields behave at this boundary and where it can be found. The main result is that the infant bow shock occurs at intermediate activity and intermediate distances to the comet. Most plasma parameters behave as expected; however, some inconsistencies indicate that the boundary is non-stationary.
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