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Sökning: WFRF:(Khotyaintsev Yu V.) > (2020-2024) > Solar wind current ...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00007643naa a2200769 4500
001oai:DiVA.org:kth-307152
003SwePub
008220125s2021 | |||||||||||000 ||eng|
009oai:DiVA.org:uu-464441
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3071522 URI
0247 a https://doi.org/10.1051/0004-6361/2021408552 DOI
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4644412 URI
040 a (SwePub)kthd (SwePub)uu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Steinvall, Konradu Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen,Rymd- och plasmafysik4 aut0 (Swepub:uu)konst774
2451 0a Solar wind current sheets and deHoffmann-Teller analysis First results from Solar Orbiter's DC electric field measurements
264 c 2021-12-14
264 1b EDP Sciences,c 2021
338 a print2 rdacarrier
500 a QC 20220125
520 a Context. Solar Orbiter was launched on 10 February 2020 with the purpose of investigating solar and heliospheric physics using a payload of instruments designed for both remote and in situ studies. Similar to the recently launched Parker Solar Probe, and unlike earlier missions, Solar Orbiter carries instruments designed to measure low-frequency DC electric fields. Aims. In this paper, we assess the quality of the low-frequency DC electric field measured by the Radio and Plasma Waves instrument (RPW) on Solar Orbiter. In particular, we investigate the possibility of using Solar Orbiter's DC electric and magnetic field data to estimate the solar wind speed. Methods. We used a deHoffmann-Teller (HT) analysis, based on measurements of the electric and magnetic fields, to find the velocity of solar wind current sheets, which minimises a single component of the electric field. By comparing the HT velocity to the proton velocity measured by the Proton and Alpha particle Sensor (PAS), we have developed a simple model for the effective antenna length, L-eff of the E-field probes. We then used the HT method to estimate the speed of the solar wind. Results. Using the HT method, we find that the observed variations in E-y are often in excellent agreement with the variations in the magnetic field. The magnitude of E-y, however, is uncertain due to the fact that the L-eff depends on the plasma environment. Here, we derive an empirical model relating L-eff to the Debye length, which we can use to improve the estimate of E-y and, consequently, the estimated solar wind speed. Conclusions. The low-frequency electric field provided by RPW is of high quality. Using the deHoffmann-Teller analysis, Solar Orbiter's magnetic and electric field measurements can be used to estimate the solar wind speed when plasma data are unavailable.
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
650 7a NATURVETENSKAPx Fysikx Fusion, plasma och rymdfysik0 (SwePub)103032 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Fusion, Plasma and Space Physics0 (SwePub)103032 hsv//eng
653 a solar wind
653 a plasmas
653 a magnetic reconnection
653 a methods
653 a data analysis
7001 a Khotyaintsev, Yu, Vu Swedish Inst Space Phys IRF, S-75121 Uppsala, Sweden.4 aut
7001 a Cozzani, Giuliau Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen4 aut0 (Swepub:uu)giuco816
7001 a Vaivads, Andrisu KTH,Rymd- och plasmafysik,KTH Royal Inst Technol, Sch Elect Engn & Comp Sci, Div Space & Plasma Phys, S-11428 Stockholm, Sweden.4 aut0 (Swepub:kth)u167dmzs
7001 a Yordanova, Emiliyau Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen4 aut0 (Swepub:uu)emiyo411
7001 a Eriksson, Anders I.u Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen4 aut0 (Swepub:uu)andeerik
7001 a Edberg, Niklas J. T.u Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen4 aut0 (Swepub:uu)niked861
7001 a Maksimovic, M.u Univ Paris Diderot, Sorbonne Univ, CNRS, Observ Paris,Univ PSL,LESIA, Sorbonne Paris Cite,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.4 aut
7001 a Bale, S. D.u Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.;Univ Calif Berkeley, Phys Dept, Berkeley, CA 94720 USA.,Czech Acad Sci, Astron Inst, Prague, Czech Republic.4 aut
7001 a Chust, T.u Univ Paris Saclay, Sorbonne Univ, Observ Paris, Ecole Polytech,LPP,CNRS, Paris, France.4 aut
7001 a Krasnoselskikh, Vu Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.;CNRS, LPC2E, 3A Ave Rech Sci, Orleans, France.4 aut
7001 a Kretzschmar, M.u CNRS, LPC2E, 3A Ave Rech Sci, Orleans, France.;Univ Orleans, Orleans, France.4 aut
7001 a Lorfevre, E.u CNES, 18 Ave Edouard Belin, F-31400 Toulouse, France.4 aut
7001 a Plettemeier, D.u Tech Univ Dresden, Helmholtz Str 10, D-01187 Dresden, Germany.4 aut
7001 a Soucek, J.u Czech Acad Sci, Inst Atmospher Phys, Prague, Czech Republic.4 aut
7001 a Steller, M.u Austrian Acad Sci, Space Res Inst, Graz, Austria.4 aut
7001 a Stverak, S.u Czech Acad Sci, Astron Inst, Prague, Czech Republic.,Imperial Coll London, South Kensington Campus, London SW7 2AZ, England.4 aut
7001 a Vecchio, A.u Univ Paris Diderot, Sorbonne Univ, CNRS, Observ Paris,Univ PSL,LESIA, Sorbonne Paris Cite,5 Pl Jules Janssen, F-92195 Meudon, France.;Radboud Univ Nijmegen, Dept Astrophys, Radboud Radio Lab, Nijmegen, Netherlands.4 aut
7001 a Horbury, T. S.u Imperial Coll London, South Kensington Campus, London SW7 2AZ, England.4 aut
7001 a O'Brien, H.u Imperial Coll London, South Kensington Campus, London SW7 2AZ, England.4 aut
7001 a Evans, Vu Imperial Coll London, South Kensington Campus, London SW7 2AZ, England.4 aut
7001 a Fedorov, A.u Inst Rech Astrophys & Planetol, 9 Ave Colonel Roche,BP 4346, F-31028 Toulouse 4, France.4 aut
7001 a Louarn, P.u Inst Rech Astrophys & Planetol, 9 Ave Colonel Roche,BP 4346, F-31028 Toulouse 4, France.4 aut
7001 a Genot, Vu Inst Rech Astrophys & Planetol, 9 Ave Colonel Roche,BP 4346, F-31028 Toulouse 4, France.4 aut
7001 a Andre, N.u Inst Rech Astrophys & Planetol, 9 Ave Colonel Roche,BP 4346, F-31028 Toulouse 4, France.4 aut
7001 a Lavraud, B.u Inst Rech Astrophys & Planetol, 9 Ave Colonel Roche,BP 4346, F-31028 Toulouse 4, France.;Univ Bordeaux, Lab Astrophys Bordeaux, CNRS, Pessac, France.4 aut
7001 a Rouillard, A. P.u Inst Rech Astrophys & Planetol, 9 Ave Colonel Roche,BP 4346, F-31028 Toulouse 4, France.4 aut
7001 a Owen, C. J.u Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England.4 aut
7001 a Khotyaintsev, Yuri V.u Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen4 aut0 (Swepub:uu)ykh28990
7102 a Uppsala universitetb Institutet för rymdfysik, Uppsalaavdelningen4 org
7730 t Astronomy and Astrophysicsd : EDP Sciencesg 656q 656x 0004-6361x 1432-0746
8564 u http://arxiv.org/pdf/2104.03553
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-307152
8564 8u https://doi.org/10.1051/0004-6361/202140855
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-464441

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