| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m21d.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34T/4878Q7S | |||
| Repository | sid.inpe.br/mtc-m21d/2022/12.13.19.52 | |||
| Metadata Repository | sid.inpe.br/mtc-m21d/2022/12.13.19.52.08 | |||
| Metadata Last Update | 2023:01.03.16.46.27 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | AlvesAlve:2022:ImPiAn | |||
| Title | Interaction Time of Relativistic Electrons and Whistler-Mode Chorus Waves in the Radiation Belt: Implications for the Pitch Angle Scattering  | |||
| Year | 2022 | |||
| Access Date | 2024, May 14 | |||
| Secondary Type | PRE CI | |||
| 2. Context | ||||
| Author | 1 Alves, Livia Ribeiro 2 Alves, Márcio E. S. | |||
| Group | 1 DIHPA-CGCE-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Universidade Estadual Paulista (UNESP) | |||
| Author e-Mail Address | 1 livia.alves@inpe.br | |||
| Conference Name | AGU Fall Meeting | |||
| Conference Location | Chicago, IL | |||
| Date | 12-16 Dec. 2022 | |||
| Publisher | AGU | |||
| History (UTC) | 2022-12-13 19:52:08 :: simone -> administrator :: 2023-01-03 16:46:27 :: administrator -> simone :: 2022 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Abstract | The inner portion of the Earth's magnetic field has a dipolar configuration. It traps electrons of a broad energy range, from 10's of keV to 10's of MeV, in the outer radiation belt. The source of the trapped electrons is mainly the solar wind. The low-energy electrons (10's of keV) are transported throw the interplanetary media toward the magnetosphere. These particles reach inside the magnetosphere through magnetic reconnection. Magnetospheric convection, adiabatic motion, and wave-particle diffusion transport the electrons from the outskirts of the magnetosphere to the inner region. Low energy electrons produce whistler-mode chorus waves, hereafter named chorus waves, due to plasma temperature anisotropy and the loss cone instability. Chorus waves are very low frequency (~0.1 - 1 kHz) in whistler-mode, observed outside the plasmasphere, mainly at the dawn side magnetosphere. The wave-particle interaction can accelerate electrons seed population (100's of keV) to MeV energies. Additionally, the electrons can reach the loss-cone pitch angles and precipitate into the atmosphere. The wave-particle interaction succeeds when the resonance condition between the electron gyrofrequency and the wave frequency is achieved. The interaction time is a crucial parameter in estimating wave-particle interaction efficiency. The interaction occurs in the electron's reference frame, while the measurements are made in the satellite's frame. Therefore, we perform the necessary relativistic corrections coming from the frame change. A test particle approach is used to evaluate the variation of the electron's pitch angle scattering due to chorus waves propagating parallel to the ambient magnetic field. We apply wave-particle resonance conditions for different plasma densities to calculate the correspondent kinetic energy. Thus, in-situ measurements of the ambient plasma medium, chorus waves, and electron fluxes are used to estimate the interaction time. We also evaluate the error using the non-relativistic formulas for similar estimates. Our results show that the error in the interaction time scales with the electron's kinetic energy. The error can be higher than one order of magnitude for 400 keV low-energy electrons, which corresponds to the same magnitude error in the change in pitch angle. | |||
| Area | CEA | |||
| Arrangement | urlib.net > Produção a partir de 2021 > CGCE > Interaction Time of... | |||
| doc Directory Content | there are no files | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| User Group | simone | |||
| Visibility | shown | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/46KTFK8 | |||
| Host Collection | urlib.net/www/2021/06.04.03.40 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label language lineage mark mirrorrepository nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisheraddress readergroup readpermission resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark tertiarytype type url versiontype volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||