%0 Journal Article %1 Suni_2021_Jets %A Suni, Jonas %A Palmroth, Minna %A Turc, Lucile %A Battarbee, Markus %A Johlander, Andreas %A Tarvus, Vertti %A Alho, Markku %A Bussov, Maarja %A Dubart, Maxime %A Ganse, Urs %A Grandin, Maxime %A Horaites, Kostantinos %A Manglayev, Talgat %A Papadakis, Konstantinos %A Pfau-Kempf, Yann %A Zhou, Hongyang %D 2021 %I American Geophysical Union (AGU) %J Geophysical Research Letters %K jets magnetosphere myown simulation vlasov %R 10.1029/2021gl095655 %T Connection between foreshock structures and the generation of magnetosheath jets: Vlasiator results %X Earth’s magnetosheath consists of shocked solar wind plasma that has been compressed and slowed down at the Earth’s bow shock. Magnetosheath jets are pulses of enhanced dynamic pressure in the magnetosheath. Jets have been observed by numerous spacecraft missions, but their origin has remained unconfirmed, though several formation mechanisms have been suggested. In this study, we use a method for automatically identifying and tracking jets as well as foreshock compressive structures (FCS) in four 2D runs of the global hybrid-Vlasov simulation Vlasiator. We find that up to 75% of magnetosheath jets are caused by FCSs impacting the bow shock. These jets propagate deeper into the magnetosheath than the remaining 25% of jets that are not caused by FCSs. We conduct a visual case study of one jet that was not caused by FCSs and find that the bow shock was not rippled before the formation of the jet.

@article{Suni_2021_Jets, abstract = {Earth’s magnetosheath consists of shocked solar wind plasma that has been compressed and slowed down at the Earth’s bow shock. Magnetosheath jets are pulses of enhanced dynamic pressure in the magnetosheath. Jets have been observed by numerous spacecraft missions, but their origin has remained unconfirmed, though several formation mechanisms have been suggested. In this study, we use a method for automatically identifying and tracking jets as well as foreshock compressive structures (FCS) in four 2D runs of the global hybrid-Vlasov simulation Vlasiator. We find that up to 75% of magnetosheath jets are caused by FCSs impacting the bow shock. These jets propagate deeper into the magnetosheath than the remaining 25% of jets that are not caused by FCSs. We conduct a visual case study of one jet that was not caused by FCSs and find that the bow shock was not rippled before the formation of the jet. }, added-at = {2021-10-14T11:38:37.000+0200}, author = {Suni, Jonas and Palmroth, Minna and Turc, Lucile and Battarbee, Markus and Johlander, Andreas and Tarvus, Vertti and Alho, Markku and Bussov, Maarja and Dubart, Maxime and Ganse, Urs and Grandin, Maxime and Horaites, Kostantinos and Manglayev, Talgat and Papadakis, Konstantinos and Pfau-Kempf, Yann and Zhou, Hongyang}, biburl = {https://www.bibsonomy.org/bibtex/2018653cc1679602c03fc762df5c00da8/ursg}, doi = {10.1029/2021gl095655}, interhash = {c245558bc8d4250aee68b2470125ce07}, intrahash = {018653cc1679602c03fc762df5c00da8}, journal = {Geophysical Research Letters}, keywords = {jets magnetosphere myown simulation vlasov}, month = oct, publisher = {American Geophysical Union ({AGU})}, timestamp = {2021-10-14T11:43:11.000+0200}, title = {Connection between foreshock structures and the generation of magnetosheath jets: Vlasiator results}, year = 2021 }