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Solar Orbiter Data-Model Comparison in Venus' Induced Magnetotail

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Stergiopoulou, Katerina
dc.contributor.author Jarvinen, Riku
dc.contributor.author Andrews, David J.
dc.contributor.author Edberg, Niklas J.T.
dc.contributor.author Dimmock, Andrew P.
dc.contributor.author Kallio, Esa
dc.contributor.author Persson, Moa
dc.contributor.author Khotyaintsev, Yuri V.
dc.date.accessioned 2023-03-15T07:10:43Z
dc.date.available 2023-03-15T07:10:43Z
dc.date.issued 2023-02
dc.identifier.citation Stergiopoulou , K , Jarvinen , R , Andrews , D J , Edberg , N J T , Dimmock , A P , Kallio , E , Persson , M & Khotyaintsev , Y V 2023 , ' Solar Orbiter Data-Model Comparison in Venus' Induced Magnetotail ' , Journal of geophysical research: Space physics , vol. 128 , no. 2 , e2022JA031023 . https://doi.org/10.1029/2022JA031023 en
dc.identifier.issn 2169-9380
dc.identifier.issn 2169-9402
dc.identifier.other PURE UUID: f4bbc764-3674-42b8-a0f4-bac5059cc601
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/f4bbc764-3674-42b8-a0f4-bac5059cc601
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85148961087&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/102512584/JGR_Space_Physics_2023_Stergiopoulou_Solar_Orbiter_Data_Model_Comparison_in_Venus_Induced_Magnetotail.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/120111
dc.description Funding Information: K. S. acknowledges support from the Swedish National Space Agency through Grants DNR 156/16. The work of R.J. was supported by the Academy of Finland (Decision No. 310444). A.P.D. received financial support from the Swedish National Space Agency (Grant 2020‐00111) and the EU Horizon 2020 project SHARP: SHocks: structure, AcceleRation, dissiPation 101004131. Publisher Copyright: ©2023. The Authors.
dc.description.abstract We investigate the structure of the Venusian magnetotail utilizing magnetic field and electron density measurements that cover a wide range of distances from the planet, from the first two Solar Orbiter Venus flybys. We examine the magnetic field components along the spacecraft trajectory up to 80 Venus radii down the tail. Even though the magnetic field behavior differs considerably between the two cases, we see extended electron density enhancements covering distances greater than ∼20 RV in both flybys. We compare the magnetic field measurements with a global hybrid model of the induced magnetosphere and magnetotail of Venus, to examine to what degree the observations can be understood with the simulation. The model upstream conditions are stationary and the solution encloses a large volume of 83 RV × 60 RV × 60 RV in which we look for spatial magnetic field and plasma variations. We rotate the simulation solution to describe different stationary upstream IMF clock angle cases with a 10° step and find the clock angle for which the agreement between observations and model is maximized along Solar Orbiter's trajectory in 1-min steps. We find that in both flybys there is better agreement with the observations when we rotate the model for some intervals, while there are parts that cannot be well reproduced by the model irrespective of how we vary the IMF clock angle, suggesting the presence of non-stationary features in the Venus-solar wind interaction not accounted for in the hybrid model. en
dc.format.extent 20
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher WILEY-BLACKWELL
dc.relation.ispartofseries Journal of geophysical research: Space physics en
dc.relation.ispartofseries Volume 128, issue 2 en
dc.rights openAccess en
dc.title Solar Orbiter Data-Model Comparison in Venus' Induced Magnetotail en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Swedish Institute of Space Physics
dc.contributor.department Esa Kallio Group
dc.contributor.department Department of Electronics and Nanoengineering
dc.contributor.department Centre national d'études spatiales
dc.contributor.department Department of Electronics and Nanoengineering en
dc.identifier.urn URN:NBN:fi:aalto-202303152437
dc.identifier.doi 10.1029/2022JA031023
dc.type.version publishedVersion

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