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Sökning: WFRF:(Decreau P. M. E.) > Electron density es...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003841naa a2200553 4500
001oai:DiVA.org:kth-17510
003SwePub
008100805s2008 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-175102 URI
0247 a https://doi.org/10.1029/2007ja0126362 DOI
040 a (SwePub)kth
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Pedersen, A.4 aut
2451 0a Electron density estimations derived from spacecraft potential measurements on Cluster in tenuous plasma regions
264 c 2008-05-02
264 1b American Geophysical Union (AGU),c 2008
338 a print2 rdacarrier
500 a QC 20100525Correction in: Journal of Geophysical Research, vol. 133, issue. A7,  Article number. A07220 Doi: 10.1029/2008JA013371, WOS:000258156400008
520 a Spacecraft potential measurements by the EFW electric field experiment on the Cluster satellites can be used to obtain plasma density estimates in regions barely accessible to other type of plasma experiments. Direct calibrations of the plasma density as a function of the measured potential difference between the spacecraft and the probes can be carried out in the solar wind, the magnetosheath, and the plasmashere by the use of CIS ion density and WHISPER electron density measurements. The spacecraft photoelectron characteristic ( photoelectrons escaping to the plasma in current balance with collected ambient electrons) can be calculated from knowledge of the electron current to the spacecraft based on plasma density and electron temperature data from the above mentioned experiments and can be extended to more positive spacecraft potentials by CIS ion and the PEACE electron experiments in the plasma sheet. This characteristic enables determination of the electron density as a function of spacecraft potential over the polar caps and in the lobes of the magnetosphere, regions where other experiments on Cluster have intrinsic limitations. Data from 2001 to 2006 reveal that the photoelectron characteristics of the Cluster spacecraft as well as the electric field probes vary with the solar cycle and solar activity. The consequences for plasma density measurements are addressed. Typical examples are presented to demonstrate the use of this technique in a polar cap/lobe plasma.
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 earths magnetosphere
653 a field measurements
653 a probe
653 a mission
653 a peace
7001 a Lybekk, B.4 aut
7001 a Andre, M.4 aut
7001 a Eriksson, Andersu Swedish Institute of Space Physics, Sweden4 aut
7001 a Masson, A.4 aut
7001 a Mozer, F. S.4 aut
7001 a Lindqvist, Per-Arneu KTH,Rymd- och plasmafysik4 aut0 (Swepub:kth)u1yukyk9
7001 a Decreau, P. M. E.4 aut
7001 a Dandouras, I.4 aut
7001 a Sauvaud, J. A.4 aut
7001 a Fazakerley, A.4 aut
7001 a Taylor, M.4 aut
7001 a Paschmann, G.4 aut
7001 a Svenes, K. R.4 aut
7001 a Torkar, K.4 aut
7001 a Whipple, E.4 aut
7102 a Swedish Institute of Space Physics, Swedenb Rymd- och plasmafysik4 org
7730 t Journal of Geophysical Researchd : American Geophysical Union (AGU)g 113:A7q 113:A7x 0148-0227x 2156-2202
8564 u https://hal-insu.archives-ouvertes.fr/insu-01408701/file/Pedersen_et_al-2008-Journal_of_Geophysical_Research__Space_Physics_%281978-2012%29.pdf
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-17510
8564 8u https://doi.org/10.1029/2007ja012636

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