• Türkçe
    • English
  • English 
    • Türkçe
    • English
  • Login
View Item 
  •   DSpace Home
  • 1- Fakülteler | Faculties
  • Fen Edebiyat Fakültesi / Faculty of Arts and Sciences
  • Enformasyon Teknolojileri Bölümü / Department of Information Technologies
  • FEF - Makale Koleksiyonu | Enformasyon Teknolojileri Bölümü / Department of Information Technologies
  • View Item
  •   DSpace Home
  • 1- Fakülteler | Faculties
  • Fen Edebiyat Fakültesi / Faculty of Arts and Sciences
  • Enformasyon Teknolojileri Bölümü / Department of Information Technologies
  • FEF - Makale Koleksiyonu | Enformasyon Teknolojileri Bölümü / Department of Information Technologies
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Numerical calculations of relativistic electron drift loss effect

Thumbnail

View/Open

Publisher's Version (3.694Mb)

Date

2008-09-09

Author

Kim, Kyung Chan
Lee, Daeyoung
Kim, Heejeong
Lyons, Larry R.
Lee, Ensang
Öztürk, Mehmet Kaan
Choi, Cheongrim

Metadata

Show full item record

Citation

Kim, K. C., Lee, D. -., Kim, H. -., Lyons, L. R., Lee, E. S., Öztürk, M. K., & Choi, C. R. (2008). Numerical calculations of relativistic electron drift loss effect. Journal of Geophysical Research A: Space Physics, 113(9) doi:10.1029/2007JA013011

Abstract

It has been suggested that drift loss to the magnetopause can be one of the major loss mechanisms contributing to relativistic electron flux dropouts. In this study, we examine details of relativistic electrons' drift physics to determine the extent to which the drift loss through the magnetopause is important to the total loss of the outer radiation belt. We have numerically computed drift paths of relativistic electrons' guiding center for various pitch angles, various measurement positions, and different solar wind conditions using the Tsyganenko T02 model. We specifically demonstrate how the drift loss effect depends on these various parameters. Most importantly, we present various estimates of relative changes of the omnidirectional flux of 1 MeV electrons between two different solar wind conditions based on a simple form of the directional flux function. For a change of the dynamic pressure from 4 nPa to 10 nPa with a fixed IMF B-Z = 0 nT, our estimate indicates that after this increase in pressure, the equatorial omnidirectional flux at midnight near geosynchronous altitude decreases by similar to 56 to similar to 97%, depending on the specific pitch angle dependence of the directional flux. The effect rapidly decreases at regions earthward of geosynchronous orbit and shows a general trend of decrease away from midnight. For a change of the IMF BZ from 0 nT to -15 nT with a fixed dynamic pressure of 4 nPa, the relative decrease of the omnidirectional flux at geosynchronous altitude on the nightside is much smaller than that for the pressure increase, but its effect becomes substantial only beyond geosynchronous orbit. Possibilities exist that our results may change to some extent for a different magnetospheric model than the one used here.

Source

Journal of Geophysical Research-Space Physics

Volume

113

Issue

A9

URI

https://hdl.handle.net/11729/289
http://dx.doi.org/10.1029/2007JA013011

Collections

  • FEF - Makale Koleksiyonu | Enformasyon Teknolojileri Bölümü / Department of Information Technologies [67]
  • Scopus İndeksli Makale Koleksiyonu [792]
  • WoS İndeksli Makale Koleksiyonu [810]



DSpace software copyright © 2002-2015  DuraSpace
Contact Us | Send Feedback
Theme by 
@mire NV
 

 




| Policy | Guide | Contact |

DSpace@Işık

by OpenAIRE
Advanced Search

sherpa/romeo

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsTypeLanguageDepartmentCategoryPublisherAccess TypeIşık AuthorCitationThis CollectionBy Issue DateAuthorsTitlesSubjectsTypeLanguageDepartmentCategoryPublisherAccess TypeIşık AuthorCitation

My Account

LoginRegister

Statistics

View Google Analytics Statistics

DSpace software copyright © 2002-2015  DuraSpace
Contact Us | Send Feedback
Theme by 
@mire NV
 

 


|| Policy || Guide || Library || Işık University || OAI-PMH ||

Işık University Library, Şile, İstanbul, Turkey
If you find any errors in content please report us

Creative Commons License
Işık University Institutional Repository is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 Unported License..

DSpace@Işık:


DSpace 6.2

tarafından İdeal DSpace hizmetleri çerçevesinde özelleştirilerek kurulmuştur.