First measurements of electron vorticity in the foreshock and solar wind
| dc.contributor.author | Gurgiolo, C. | |
| dc.contributor.author | Goldstein, Melvyn | |
| dc.contributor.author | Viñas, A. F. | |
| dc.contributor.author | Fazakerley, A. N. | |
| dc.date.accessioned | 2023-11-16T20:00:31Z | |
| dc.date.available | 2023-11-16T20:00:31Z | |
| dc.date.issued | 2010-12-21 | |
| dc.description.abstract | We describe the methodology used to set up and compute spatial derivatives of the electron moments using data acquired by the Plasma Electron And Current Experiment (PEACE) from the four Cluster spacecraft. The results are used to investigate electron vorticity in the foreshock. We find that much of the measured vorticity, under nominal conditions, appears to be caused by changes in the flow direction of the return (either reflected or leakage from the magnetosheath) and strahl electron populations as they couple to changes in the magnetic field orientation. This in turn results in deflections in the total bulk velocity producing the measured vorticity. | |
| dc.description.sponsorship | The authors would like to acknowledge the work and role the Cluster Active Archive (CAA) and thank the CIS, EFW, WHISPER and FGM teams for providing the data used in this study. We would also like to acknowledge the PEACE team at MSSL who worked on and are constantly improving the instrument calibration as well as the two referees for their thoughtful and excellent comments. CG would like to acknowledge support from NASA Grant NNX10AC90G. | |
| dc.description.uri | https://angeo.copernicus.org/articles/28/2187/2010/ | |
| dc.format.extent | 14 pages | |
| dc.genre | journal articles | |
| dc.identifier.citation | Gurgiolo, C., Goldstein, M. L., Viñas, A. F., and Fazakerley, A. N.: First measurements of electron vorticity in the foreshock and solar wind, Ann. Geophys., 28, 2187–2200, https://doi.org/10.5194/angeo-28-2187-2010, 2010. | |
| dc.identifier.uri | https://doi.org/10.5194/angeo-28-2187-2010 | |
| dc.identifier.uri | http://hdl.handle.net/11603/30785 | |
| dc.language.iso | en_US | |
| dc.publisher | EGU | |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Goddard Planetary Heliophysics Institute (GPHI) | |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | |
| dc.rights | Public Domain Mark 1.0 | en |
| dc.rights.uri | https://creativecommons.org/publicdomain/mark/1.0/ | |
| dc.title | First measurements of electron vorticity in the foreshock and solar wind | |
| dc.type | Text | |
| dcterms.creator | https://orcid.org/0000-0002-5317-988X |