Signatures of Ultrarelativistic Electron Loss in the Heart of the Outer Radiation Belt Measured by Van Allen Probes
Up until recently, signatures of the ultrarelativistic electron loss driven by electromagnetic ion cyclotron (EMIC) waves in the Earth's outer radiation belt have been limited to direct or indirect measurements of electron precipitation or the narrowing of normalized pitch angle distributions i...
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| Veröffentlicht in: | Journal of geophysical research. Space physics 2017-10, Vol.122 (10), p.10,102-10,111 |
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| container_title | Journal of geophysical research. Space physics |
| container_volume | 122 |
| creator | Aseev, N. A. Shprits, Y. Y. Drozdov, A. Y. Kellerman, A. C. Usanova, M. E. Wang, D. Zhelavskaya, I. S. |
| description | Up until recently, signatures of the ultrarelativistic electron loss driven by electromagnetic ion cyclotron (EMIC) waves in the Earth's outer radiation belt have been limited to direct or indirect measurements of electron precipitation or the narrowing of normalized pitch angle distributions in the heart of the belt. In this study, we demonstrate additional observational evidence of ultrarelativistic electron loss that can be driven by resonant interaction with EMIC waves. We analyzed the profiles derived from Van Allen Probe particle data as a function of time and three adiabatic invariants between 9 October and 29 November 2012. New local minimums in the profiles are accompanied by the narrowing of normalized pitch angle distributions and ground‐based detection of EMIC waves. Such a correlation may be indicative of ultrarelativistic electron precipitation into the Earth's atmosphere caused by resonance with EMIC waves.
Key Points
Formation of local minimums in phase space density profiles of ultrarelativistic electrons coincides with EMIC wave occurrence
New local minimums are accompanied by narrowing of normalized pitch angle distributions
The local minimums are indicative of EMIC wave‐induced loss in the heart of the outer belt |
| doi_str_mv | 10.1002/2017JA024485 |
| format | Article |
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Key Points
Formation of local minimums in phase space density profiles of ultrarelativistic electrons coincides with EMIC wave occurrence
New local minimums are accompanied by narrowing of normalized pitch angle distributions
The local minimums are indicative of EMIC wave‐induced loss in the heart of the outer belt</description><identifier>ISSN: 2169-9380</identifier><identifier>EISSN: 2169-9402</identifier><identifier>DOI: 10.1002/2017JA024485</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Adiabatic flow ; Cyclotrons ; Earth atmosphere ; electron loss ; Electron precipitation ; Electrons ; EMIC waves ; Geophysics ; Ion cyclotron waves ; Outer radiation belt ; Pitch (inclination) ; Radiation ; radiation belts ; Space density ; ultrarelativistic electrons ; Waves ; wave‐particle interactions</subject><ispartof>Journal of geophysical research. Space physics, 2017-10, Vol.122 (10), p.10,102-10,111</ispartof><rights>2017. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4110-344023d002aa6b6218f5b889decc87cdddfccd5f98a4b73c92b214a9ce7fb19e3</citedby><cites>FETCH-LOGICAL-c4110-344023d002aa6b6218f5b889decc87cdddfccd5f98a4b73c92b214a9ce7fb19e3</cites><orcidid>0000-0002-0406-6387 ; 0000-0002-5334-2026 ; 0000-0002-2315-936X ; 0000-0002-7112-2780 ; 0000-0002-9625-0834 ; 0000-0002-7029-5372 ; 0000-0002-4213-4037</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F2017JA024485$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2017JA024485$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,1427,27901,27902,45550,45551,46384,46808</link.rule.ids></links><search><creatorcontrib>Aseev, N. A.</creatorcontrib><creatorcontrib>Shprits, Y. Y.</creatorcontrib><creatorcontrib>Drozdov, A. Y.</creatorcontrib><creatorcontrib>Kellerman, A. C.</creatorcontrib><creatorcontrib>Usanova, M. E.</creatorcontrib><creatorcontrib>Wang, D.</creatorcontrib><creatorcontrib>Zhelavskaya, I. S.</creatorcontrib><title>Signatures of Ultrarelativistic Electron Loss in the Heart of the Outer Radiation Belt Measured by Van Allen Probes</title><title>Journal of geophysical research. Space physics</title><description>Up until recently, signatures of the ultrarelativistic electron loss driven by electromagnetic ion cyclotron (EMIC) waves in the Earth's outer radiation belt have been limited to direct or indirect measurements of electron precipitation or the narrowing of normalized pitch angle distributions in the heart of the belt. In this study, we demonstrate additional observational evidence of ultrarelativistic electron loss that can be driven by resonant interaction with EMIC waves. We analyzed the profiles derived from Van Allen Probe particle data as a function of time and three adiabatic invariants between 9 October and 29 November 2012. New local minimums in the profiles are accompanied by the narrowing of normalized pitch angle distributions and ground‐based detection of EMIC waves. Such a correlation may be indicative of ultrarelativistic electron precipitation into the Earth's atmosphere caused by resonance with EMIC waves.
Key Points
Formation of local minimums in phase space density profiles of ultrarelativistic electrons coincides with EMIC wave occurrence
New local minimums are accompanied by narrowing of normalized pitch angle distributions
The local minimums are indicative of EMIC wave‐induced loss in the heart of the outer belt</description><subject>Adiabatic flow</subject><subject>Cyclotrons</subject><subject>Earth atmosphere</subject><subject>electron loss</subject><subject>Electron precipitation</subject><subject>Electrons</subject><subject>EMIC waves</subject><subject>Geophysics</subject><subject>Ion cyclotron waves</subject><subject>Outer radiation belt</subject><subject>Pitch (inclination)</subject><subject>Radiation</subject><subject>radiation belts</subject><subject>Space density</subject><subject>ultrarelativistic electrons</subject><subject>Waves</subject><subject>wave‐particle interactions</subject><issn>2169-9380</issn><issn>2169-9402</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kMlOwzAQhi0EElXpjQewxJWCtyT2MVSlpSoCFco1cuwJpApJsR1Q3x5XBYkTc5lF3_yzIHROyRUlhF0zQrNFTpgQMjlCA0ZTNVaCsOPfmEtyikbeb0g0GUs0GSD_VL-2OvQOPO4qvG6C0w4aHerP2ofa4GkDJriuxcvOe1y3OLwBnoN2Yc_vk4c-gMMrbevYFcEbaAK-B-2jqMXlDr_oFudNAy1-dF0J_gydVLrxMPrxQ7S-nT5P5uPlw-xuki_HRlBKxlzE7bmNt2mdlimjskpKKZUFY2RmrLWVMTaplNSizLhRrGRUaGUgq0qqgA_RxUF367qPHnwoNl3v2jiyoCpNOWcyJZG6PFDGxQsdVMXW1e_a7QpKiv1ni7-fjTg_4F91A7t_2WIxW-UJl4Lwb7Ywejk</recordid><startdate>201710</startdate><enddate>201710</enddate><creator>Aseev, N. A.</creator><creator>Shprits, Y. Y.</creator><creator>Drozdov, A. Y.</creator><creator>Kellerman, A. C.</creator><creator>Usanova, M. E.</creator><creator>Wang, D.</creator><creator>Zhelavskaya, I. S.</creator><general>Blackwell Publishing Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>8FD</scope><scope>H8D</scope><scope>KL.</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-0406-6387</orcidid><orcidid>https://orcid.org/0000-0002-5334-2026</orcidid><orcidid>https://orcid.org/0000-0002-2315-936X</orcidid><orcidid>https://orcid.org/0000-0002-7112-2780</orcidid><orcidid>https://orcid.org/0000-0002-9625-0834</orcidid><orcidid>https://orcid.org/0000-0002-7029-5372</orcidid><orcidid>https://orcid.org/0000-0002-4213-4037</orcidid></search><sort><creationdate>201710</creationdate><title>Signatures of Ultrarelativistic Electron Loss in the Heart of the Outer Radiation Belt Measured by Van Allen Probes</title><author>Aseev, N. A. ; Shprits, Y. Y. ; Drozdov, A. Y. ; Kellerman, A. C. ; Usanova, M. E. ; Wang, D. ; Zhelavskaya, I. S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4110-344023d002aa6b6218f5b889decc87cdddfccd5f98a4b73c92b214a9ce7fb19e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Adiabatic flow</topic><topic>Cyclotrons</topic><topic>Earth atmosphere</topic><topic>electron loss</topic><topic>Electron precipitation</topic><topic>Electrons</topic><topic>EMIC waves</topic><topic>Geophysics</topic><topic>Ion cyclotron waves</topic><topic>Outer radiation belt</topic><topic>Pitch (inclination)</topic><topic>Radiation</topic><topic>radiation belts</topic><topic>Space density</topic><topic>ultrarelativistic electrons</topic><topic>Waves</topic><topic>wave‐particle interactions</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aseev, N. A.</creatorcontrib><creatorcontrib>Shprits, Y. Y.</creatorcontrib><creatorcontrib>Drozdov, A. Y.</creatorcontrib><creatorcontrib>Kellerman, A. C.</creatorcontrib><creatorcontrib>Usanova, M. E.</creatorcontrib><creatorcontrib>Wang, D.</creatorcontrib><creatorcontrib>Zhelavskaya, I. S.</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of geophysical research. Space physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aseev, N. A.</au><au>Shprits, Y. Y.</au><au>Drozdov, A. Y.</au><au>Kellerman, A. C.</au><au>Usanova, M. E.</au><au>Wang, D.</au><au>Zhelavskaya, I. S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Signatures of Ultrarelativistic Electron Loss in the Heart of the Outer Radiation Belt Measured by Van Allen Probes</atitle><jtitle>Journal of geophysical research. Space physics</jtitle><date>2017-10</date><risdate>2017</risdate><volume>122</volume><issue>10</issue><spage>10,102</spage><epage>10,111</epage><pages>10,102-10,111</pages><issn>2169-9380</issn><eissn>2169-9402</eissn><abstract>Up until recently, signatures of the ultrarelativistic electron loss driven by electromagnetic ion cyclotron (EMIC) waves in the Earth's outer radiation belt have been limited to direct or indirect measurements of electron precipitation or the narrowing of normalized pitch angle distributions in the heart of the belt. In this study, we demonstrate additional observational evidence of ultrarelativistic electron loss that can be driven by resonant interaction with EMIC waves. We analyzed the profiles derived from Van Allen Probe particle data as a function of time and three adiabatic invariants between 9 October and 29 November 2012. New local minimums in the profiles are accompanied by the narrowing of normalized pitch angle distributions and ground‐based detection of EMIC waves. Such a correlation may be indicative of ultrarelativistic electron precipitation into the Earth's atmosphere caused by resonance with EMIC waves.
Key Points
Formation of local minimums in phase space density profiles of ultrarelativistic electrons coincides with EMIC wave occurrence
New local minimums are accompanied by narrowing of normalized pitch angle distributions
The local minimums are indicative of EMIC wave‐induced loss in the heart of the outer belt</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2017JA024485</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-0406-6387</orcidid><orcidid>https://orcid.org/0000-0002-5334-2026</orcidid><orcidid>https://orcid.org/0000-0002-2315-936X</orcidid><orcidid>https://orcid.org/0000-0002-7112-2780</orcidid><orcidid>https://orcid.org/0000-0002-9625-0834</orcidid><orcidid>https://orcid.org/0000-0002-7029-5372</orcidid><orcidid>https://orcid.org/0000-0002-4213-4037</orcidid><oa>free_for_read</oa></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete; Wiley Journals Open Access |
| subjects | Adiabatic flow Cyclotrons Earth atmosphere electron loss Electron precipitation Electrons EMIC waves Geophysics Ion cyclotron waves Outer radiation belt Pitch (inclination) Radiation radiation belts Space density ultrarelativistic electrons Waves wave‐particle interactions |
| title | Signatures of Ultrarelativistic Electron Loss in the Heart of the Outer Radiation Belt Measured by Van Allen Probes |
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