Sökning: onr:"swepub:oai:DiVA.org:kth-305111" >
Ion Cloud Expansion...
Ion Cloud Expansion after Hyper-velocity Dust Impacts Detected by the Magnetospheric Multiscale Mission Electric Probes in the Dipole Configuration
-
- Vaverka, Jakub (författare)
- Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic.
-
- Pavlu, Jiri (författare)
- Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic.
-
- Nouzak, Libor (författare)
- Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic.
-
visa fler...
-
- Safrankova, Jana (författare)
- Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic.
-
- Nemecek, Zdenek (författare)
- Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic.
-
- Antonsen, Tarjei (författare)
- Arctic Univ Norway, Tromso, Norway.
-
- Mann, Ingrid (författare)
- Arctic Univ Norway, Tromso, Norway.
-
- Lindqvist, Per-Arne (författare)
- KTH,Rymd- och plasmafysik
-
visa färre...
-
Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic Arctic Univ Norway, Tromso, Norway. (creator_code:org_t)
- 2021-11-08
- 2021
- Engelska.
-
Ingår i: Astrophysical Journal. - : American Astronomical Society. - 0004-637X .- 1538-4357. ; 921:2
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.3...
-
visa färre...
Abstract
Ämnesord
Stäng
- Dust 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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas