Search: onr:"swepub:oai:DiVA.org:kth-307351" >
Kinetic electrostat...
-
Graham, Daniel B.Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
(author)
Kinetic electrostatic waves and their association with current structures in the solar wind
- Article/chapterEnglish2021
Publisher, publication year, extent ...
-
2021-12-14
-
EDP Sciences,2021
-
printrdacarrier
Numbers
-
LIBRIS-ID:oai:DiVA.org:kth-307351
-
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-307351URI
-
https://doi.org/10.1051/0004-6361/202140943DOI
-
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-464263URI
Supplementary language notes
-
Language:English
-
Summary in:English
Part of subdatabase
Classification
-
Subject category:ref swepub-contenttype
-
Subject category:art swepub-publicationtype
Notes
-
QC 20220124
-
Context. A variety of kinetic electrostatic and electromagnetic waves develop in the solar wind and the relationship between these waves and larger scale structures, such as current sheets and ongoing turbulence, remain a topic of investigation. Similarly, the instabilities producing ion-acoustic waves in the solar wind are still an open question. Aims. The goals of this paper are to investigate electrostatic Langmuir and ion-acoustic waves in the solar wind at 0.5 AU and determine whether current sheets and associated streaming instabilities can produce the observed waves. The relationship between these waves and currents observed in the solar wind is investigated statistically. Methods. Solar Orbiter's Radio and Plasma Waves instrument suite provides high-resolution snapshots of the fluctuating electric field. The Low Frequency Receiver resolves the waveforms of ion-acoustic waves and the Time Domain Sampler resolves the waveforms of both ion-acoustic and Langmuir waves. Using these waveform data, we determine when these waves are observed in relation to current structures in the solar wind, estimated from the background magnetic field. Results. Langmuir and ion-acoustic waves are frequently observed in the solar wind. Ion-acoustic waves are observed about 1% of the time at 0.5 AU. The waves are more likely to be observed in regions of enhanced currents. However, the waves typically do not occur at current structures themselves. The observed currents in the solar wind are too small to drive instability by the relative drift between single ion and electron populations. When multi-component ion or electron distributions are present, the observed currents may be sufficient for instabilities to occur. Ion beams are the most plausible source of ion-acoustic waves in the solar wind. The spacecraft potential is confirmed to be a reliable probe of the background electron density when comparing the peak frequencies of Langmuir waves with the plasma frequency calculated from the spacecraft potential.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
-
Khotyaintsev, Yu, VSwedish Inst Space Phys IRF, S-75121 Uppsala, Sweden.
(author)
-
Vaivads, AndrisKTH,Rymd- och plasmafysik,KTH Royal Inst Technol, Sch Elect Engn & Comp Sci, Div Space & Plasma Phys, S-11428 Stockholm, Sweden.(Swepub:kth)u167dmzs
(author)
-
Edberg, Niklas J. T.Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)niked861
(author)
-
Eriksson, AndersUppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)andeerik
(author)
-
Johansson, Erik P. G.Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)erijo810
(author)
-
Sorriso-Valvo, LucaUppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)lucso160
(author)
-
Maksimovic, M.Univ Paris Diderot, Sorbonne Univ, LESIA, Sorbonne Paris Cite,Observ Paris,Univ PSL,CNRS, 5 Pl Jules Janssen, F-92195 Meudon, France.,CNRS, LPC2E, 3A Ave Rech Sci, Orleans, France.;Univ Orleans, Orleans, France.,Austrian Acad Sci, Space Res Inst, Graz, Austria.
(author)
-
Soucek, J.Czech Acad Sci, Inst Atmospher Phys, Prague, Czech Republic.
(author)
-
Pisa, D.Czech Acad Sci, Inst Atmospher Phys, Prague, Czech Republic.
(author)
-
Bale, S. D.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.;Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.,Czech Acad Sci, Astron Inst, Prague, Czech Republic.
(author)
-
Chust, T.Univ Paris Saclay, LPP, CNRS, Ecole Polytech,Sorbonne Univ,Observ Paris, Paris, France.
(author)
-
Kretzschmar, M.CNRS, LPC2E, 3A Ave Rech Sci, Orleans, France.;Univ Orleans, Orleans, France.
(author)
-
Krasnoselskikh, VUniv Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.;CNRS, LPC2E, 3A Ave Rech Sci, Orleans, France.
(author)
-
Lorfevre, E.CNES, 18 Ave Edouard Belin, F-31400 Toulouse, France.
(author)
-
Plettemeier, D.Tech Univ Dresden, Helmholtz Str 10, D-01187 Dresden, Germany.
(author)
-
Steller, M.Austrian Acad Sci, Space Res Inst, Graz, Austria.
(author)
-
Stverak, S.Czech Acad Sci, Astron Inst, Prague, Czech Republic.,Imperial Coll London, South Kensington Campus, London SW7 2AZ, England.
(author)
-
Travnicek, P.Czech Acad Sci, Inst Atmospher Phys, Prague, Czech Republic.;Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
(author)
-
Vecchio, A.Univ Paris Diderot, Sorbonne Univ, LESIA, Sorbonne Paris Cite,Observ Paris,Univ PSL,CNRS, 5 Pl Jules Janssen, F-92195 Meudon, France.;Radboud Univ Nijmegen, Dept Astrophys, Radboud Radio Lab, Nijmegen, Netherlands.,Imperial Coll London, South Kensington Campus, London SW7 2AZ, England.
(author)
-
Horbury, T. S.Imperial Coll London, South Kensington Campus, London SW7 2AZ, England.
(author)
-
O'Brien, H.Imperial Coll London, South Kensington Campus, London SW7 2AZ, England.
(author)
-
Evans, VImperial Coll London, South Kensington Campus, London SW7 2AZ, England.
(author)
-
Angelini, VImperial Coll London, South Kensington Campus, London SW7 2AZ, England.
(author)
-
Khotyaintsev, Yuri V.Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)ykh28990
(author)
-
Uppsala universitetInstitutet för rymdfysik, Uppsalaavdelningen
(creator_code:org_t)
Related titles
-
In:Astronomy and Astrophysics: EDP Sciences6560004-63611432-0746
Internet link
Find in a library
To the university's database
- By the author/editor
-
Graham, Daniel B ...
-
Khotyaintsev, Yu ...
-
Vaivads, Andris
-
Edberg, Niklas J ...
-
Eriksson, Anders
-
Johansson, Erik ...
-
show more...
-
Sorriso-Valvo, L ...
-
Maksimovic, M.
-
Soucek, J.
-
Pisa, D.
-
Bale, S. D.
-
Chust, T.
-
Kretzschmar, M.
-
Krasnoselskikh, ...
-
Lorfevre, E.
-
Plettemeier, D.
-
Steller, M.
-
Stverak, S.
-
Travnicek, P.
-
Vecchio, A.
-
Horbury, T. S.
-
O'Brien, H.
-
Evans, V
-
Angelini, V
-
Khotyaintsev, Yu ...
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Fusion Plasma an ...
- Articles in the publication
-
Astronomy and As ...
- By the university
-
Royal Institute of Technology
-
Uppsala University