Comparison of theory and in situ observations for electron and ion distributions in the near wake of the explorer 31 and AE-C satellites
dc.contributor.author | Samir, Uri | en_US |
dc.contributor.author | Fontheim, Ernest G. | en_US |
dc.date.accessioned | 2006-04-07T18:02:35Z | |
dc.date.available | 2006-04-07T18:02:35Z | |
dc.date.issued | 1981-09 | en_US |
dc.identifier.citation | Samir, Uri, Fontheim, Ernest G. (1981/09)."Comparison of theory and in situ observations for electron and ion distributions in the near wake of the explorer 31 and AE-C satellites." Planetary and Space Science 29(9): 975-987. <http://hdl.handle.net/2027.42/24274> | en_US |
dc.identifier.uri | http://www.sciencedirect.com/science/article/B6V6T-46YJH1F-3W/2/dff7e62fa718e04a38c6fc4a5da10315 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/24274 | |
dc.description.abstract | Measurements of electron density, plasma potential, and mean ion mass from the Explorer 31 satellite and measurements of ion current, plasma potential, and ion composition from the Atmosphere Explorer C (AE-C) satellite were used in a comparative study with theory regarding the charged particle distribution in the near wake of an ionospheric satellite. The theoretical wake model of Parker (1976) has been used in the study. It is shown that theory and experiment agree fairly well in the angle-of-attack range between 90 and 135[deg]. In that angular range even the neutral approximation (which treats ions as if they were neutral particles thus ignoring the influence of the electric field) gives fair agreement with the measurements. In the maximum rarefaction zone (145 < [theta] < 180[deg]), however, the theoretical model overestimates the measured ion depletion (AE-C measurements) by several orders of magnitude. A similar conclusion is drawn from the comparison between theory and the Explorer 31 electron measurements where the theory also significantly overestimates the electron depletion. The study indicates that the discrepancies are mainly due to the use of a steady-state theory and of a single ion equation (using a mean ion mass). It is recommended that improved agreement between theory and experiment be obtained by the use of the timedependent Vlasov-Poisson equations with separate equations for the various ion species. | en_US |
dc.format.extent | 1085723 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Elsevier | en_US |
dc.title | Comparison of theory and in situ observations for electron and ion distributions in the near wake of the explorer 31 and AE-C satellites | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Atmospheric, Oceanic and Space Sciences | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Geophysics and Planetary Sciences, Tel-Aviv University, Ramat-Aviv, Israel; Space Physics Research Laboratory, Department of Atmospheric and Oceanic Science, The University of Michigan, Ann Arbor, MI 48109, U.S.A. | en_US |
dc.contributor.affiliationum | Space Physics Research Laboratory, Department of Atmospheric and Oceanic Science, The University of Michigan, Ann Arbor, MI 48109, U.S.A. | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/24274/1/0000540.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/0032-0633(81)90057-X | en_US |
dc.identifier.source | Planetary and Space Science | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.