The infant bow shock: a new frontier at a weak activity comet

Herbert Gunell, Charlotte Goetz, Cyril Simon Wedlund, Jesper Lindkvist, Maria Hamrin, Hans Nilsson, Kristie Llera, Anders Eriksson, Mats Holmström

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


The bow shock is the first boundary the solar wind encounters as it approaches planets or comets. The Rosetta spacecraft was able to observe the formation of a bow shock by following comet 67P/Churyumov–Gerasimenko toward the Sun, through perihelion, and back outward again. The spacecraft crossed the newly formed bow shock several times during two periods a few months before and after perihelion; it observed an increase in magnetic field magnitude and oscillation amplitude, electron and proton heating at the shock, and the diminution of the solar wind further downstream. Rosetta observed a cometary bow shock in its infancy, a stage in its development not previously accessible to in situ measurements at comets and planets.

Original languageEnglish
Article numberL2
Number of pages5
JournalAstronomy & Astrophysics
Publication statusPublished - 6 Nov 2018
Externally publishedYes


Dive into the research topics of 'The infant bow shock: a new frontier at a weak activity comet'. Together they form a unique fingerprint.

Cite this