Sökning: WFRF:(Balikhin M.) >
Cluster observation...
Cluster observations of electrostatic solitary waves near the Earth's bow shock
- Artikel/kapitelEngelska2008
Förlag, utgivningsår, omfång ...
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:uu-149379
-
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-149379URI
-
https://doi.org/10.1029/2007JA012789DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
Using a period of internal burst mode data from the Cluster Electric Field and Wave instrument a number of electrostatic solitary structures have been identified in the foot region of Earth's quasi-perpendicular bow shock. The four individual probe potential measurements are utilized to investigate the fundamental characteristics of the solitary wave structures such as wave propagation vector, propagation velocity, scale-size and potential amplitude. Two classes of waves are observed. Bipolar solitary waves typically propagate in the solar wind direction toward the shock but at a significant angle from the ambient magnetic field. Unipolar/tripolar solitary waves tend to propagate along the ambient magnetic field. The wave amplitude-scale size relation is similar to that obtained for similar structures observed in the auroral zone. The structures lie in the theoretically allowed region in width-amplitude space to be consistent with the BGK ion holes. Using a period of internal burst mode data from the Cluster Electric Field and Wave instrument a number of electrostatic solitary structures have been identified in the foot region of Earth's quasi-perpendicular bow shock. The four individual probe potential measurements are utilized to investigate the fundamental characteristics of the solitary wave structures such as wave propagation vector, propagation velocity, scale-size and potential amplitude. Two classes of waves are observed. Bipolar solitary waves typically propagate in the solar wind direction toward the shock but at a significant angle to the ambient magnetic field in contrast to most previous studies which assume parallel propagation to the ambient magnetic field. In contrast, unipolar/tripolar solitary waves tend to propagate along the ambient magnetic field. The wave amplitude-scale size relation is similar to that obtained for structures observed in the auroral zone. The structures lie in the theoretically allowed region in width-amplitude space to be consistent with the BGK (Bernstein-Greene-Kruskal) ion holes. The two classes of observed solitary waves may greatly influence the ambient plasma dynamics around the shock. The bipolar solitary waves do not exhibit a large net potential difference but may still play an important role in plasma thermalisation by particle scattering. Unipolar/tripolar solitary waves exhibit a remarkable net potential difference that may be responsible for the plasma energisation along the ambient magnetic field.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Walker, S. N.
(författare)
-
Balikhin, M.
(författare)
-
Pokhotelov, O. A.
(författare)
-
Gedalin, M.
(författare)
-
Krasnoselskikh, V.
(författare)
-
Hayakawa, M.
(författare)
-
André, MatsUppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)maand125
(författare)
-
Dunlop, M.
(författare)
-
Reme, H.
(författare)
-
Fazakerley, A.
(författare)
-
Uppsala universitetInstitutet för rymdfysik, Uppsalaavdelningen
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Journal of Geophysical Research113:A5, s. A05211-0148-02272156-2202
Internetlänk
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Hobara, Y.
-
Walker, S. N.
-
Balikhin, M.
-
Pokhotelov, O. A ...
-
Gedalin, M.
-
Krasnoselskikh, ...
-
visa fler...
-
Hayakawa, M.
-
André, Mats
-
Dunlop, M.
-
Reme, H.
-
Fazakerley, A.
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Fysik
- Artiklar i publikationen
-
Journal of Geoph ...
- Av lärosätet
-
Uppsala universitet