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dc.contributor.authorVaverka, Jakub
dc.contributor.authorPavlů, Jiří
dc.contributor.authorNouzak, Libor
dc.contributor.authorŠafránková, Jana
dc.contributor.authorNemecek, Sdenek
dc.contributor.authorAntonsen, Tarjei
dc.contributor.authorMann, Ingrid
dc.contributor.authorLindqvist, Per-Arne
dc.date.accessioned2022-01-04T09:03:45Z
dc.date.available2022-01-04T09:03:45Z
dc.date.issued2021-11-08
dc.description.abstractDust impact detection by electric field instruments is a well-established technique. On the other hand, not all aspects of signal generation by dust impacts are completely understood. We present a study of events related to dust impacts on the spacecraft body detected by electric field probes operating simultaneously in the monopole (probe-to-spacecraft potential measurement) and dipole (probe-to-probe potential measurement) configurations by the Earth-orbiting Magnetospheric Multiscale mission spacecraft. This unique measurement allows us to investigate connections between monopole and dipole data. Our analysis shows that the signal detected by the electric field instrument in a dipole configuration is generated by an ion cloud expanding along the electric probes. In this case, expanding ions affect not only the potential of the spacecraft body but also one or more electric probes at the end of antenna booms. Electric probes located far from the spacecraft body can be influenced by an ion cloud only when the spacecraft is located in tenuous ambient plasma inside of the Earth's magnetosphere. Derived velocities of the expanding ions on the order of tens of kilometers per second are in the range of values measured experimentally in the laboratory.en_US
dc.identifier.citationVaverka, Pavlů, Nouzak, Šafránková, Nemecek, Antonsen, Mann, Lindqvist. Ion Cloud Expansion after Hypervelocity Dust Impacts Detected by the MMS Electric Probes in the Dipole Configuration. The Astrophysical Journal (ApJ). 2021en_US
dc.identifier.cristinIDFRIDAID 1967136
dc.identifier.doi10.3847/1538-4357/ac1944
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.urihttps://hdl.handle.net/10037/23582
dc.language.isoengen_US
dc.publisherIOP Publishingen_US
dc.relation.journalThe Astrophysical Journal (ApJ)
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/ROMFORSK/262941/Norway/Cosmic dust in the solar-terrestrial physics: exploring the inner heliosphere//en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400::Physics: 430::Astrophysics, astronomy: 438en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Astrofysikk, astronomi: 438en_US
dc.titleIon Cloud Expansion after Hypervelocity Dust Impacts Detected by the MMS Electric Probes in the Dipole Configurationen_US
dc.type.versionacceptedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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