Magnetic field depression within electron holes
We analyze electron holes that are spikes of the electrostatic field (up to 500 mV/m) observed by Van Allen Probes in the outer radiation belt. The unexpected feature is the magnetic field depression of about several tens of picotesla within many of the spikes. The earlier observations showed amplif...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Vasko, I. Y [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Rechteinformationen: |
Nutzungsrecht: © 2015. American Geophysical Union. All Rights Reserved. |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Geophysical research letters - Washington, DC : Union, 1974, 42(2015), 7, Seite 2123-2129 |
|---|---|
| Übergeordnetes Werk: |
volume:42 ; year:2015 ; number:7 ; pages:2123-2129 |
| Links: |
|---|
| DOI / URN: |
10.1002/2015GL063370 |
|---|
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OLC1964147484 |
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| 520 | |a We analyze electron holes that are spikes of the electrostatic field (up to 500 mV/m) observed by Van Allen Probes in the outer radiation belt. The unexpected feature is the magnetic field depression of about several tens of picotesla within many of the spikes. The earlier observations showed amplification or negligible perturbations of the magnetic field within the electron holes. We suggest that the observed magnetic field depression is due to the diamagnetic current of hot and highly anisotropic population of electrons trapped within the electron holes. The required trapped population should have a density up to 65% of the background plasma density, a temperature up to several keV, and a temperature anisotropy T ⊥ / T ∥ ∼2. We argue that the observed electron holes could be generated due to injections of highly anisotropic plasma sheet electrons into the outer radiation belt. These electron holes may present a source of the seed population due to transport of trapped electrons to higher latitudes and can be potentially used for distant probing of plasma properties in their source region. Observations of electron holes with depressed magnetic field Physical model of the magnetic field depression due to diamagnetic currents Significant amount of keV highly anisotropic electrons within electron holes | ||
| 540 | |a Nutzungsrecht: © 2015. American Geophysical Union. All Rights Reserved. | ||
| 650 | 4 | |a electron hole | |
| 650 | 4 | |a diamagnetic effect | |
| 650 | 4 | |a outer radiation belt | |
| 650 | 4 | |a Magnetic fields | |
| 700 | 1 | |a Agapitov, O. V |4 oth | |
| 700 | 1 | |a Mozer, F |4 oth | |
| 700 | 1 | |a Artemyev, A. V |4 oth | |
| 700 | 1 | |a Jovanovic, D |4 oth | |
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10.1002/2015GL063370 doi PQ20160617 (DE-627)OLC1964147484 (DE-599)GBVOLC1964147484 (PRQ)c2209-cb04fbe1784d8851807c4eb807c13675a67097e2ed3969e765e26eac0fe28d290 (KEY)0026932820150000042000702123magneticfielddepressionwithinelectronholes DE-627 ger DE-627 rakwb eng 550 DNB 38.70 bkl Vasko, I. Y verfasserin aut Magnetic field depression within electron holes 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We analyze electron holes that are spikes of the electrostatic field (up to 500 mV/m) observed by Van Allen Probes in the outer radiation belt. The unexpected feature is the magnetic field depression of about several tens of picotesla within many of the spikes. The earlier observations showed amplification or negligible perturbations of the magnetic field within the electron holes. We suggest that the observed magnetic field depression is due to the diamagnetic current of hot and highly anisotropic population of electrons trapped within the electron holes. The required trapped population should have a density up to 65% of the background plasma density, a temperature up to several keV, and a temperature anisotropy T ⊥ / T ∥ ∼2. We argue that the observed electron holes could be generated due to injections of highly anisotropic plasma sheet electrons into the outer radiation belt. These electron holes may present a source of the seed population due to transport of trapped electrons to higher latitudes and can be potentially used for distant probing of plasma properties in their source region. Observations of electron holes with depressed magnetic field Physical model of the magnetic field depression due to diamagnetic currents Significant amount of keV highly anisotropic electrons within electron holes Nutzungsrecht: © 2015. American Geophysical Union. All Rights Reserved. electron hole diamagnetic effect outer radiation belt Magnetic fields Agapitov, O. V oth Mozer, F oth Artemyev, A. V oth Jovanovic, D oth Enthalten in Geophysical research letters Washington, DC : Union, 1974 42(2015), 7, Seite 2123-2129 (DE-627)129095109 (DE-600)7403-2 (DE-576)01443122X 0094-8276 nnns volume:42 year:2015 number:7 pages:2123-2129 http://dx.doi.org/10.1002/2015GL063370 Volltext http://onlinelibrary.wiley.com/doi/10.1002/2015GL063370/abstract http://search.proquest.com/docview/1676003757 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_47 GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2279 38.70 AVZ AR 42 2015 7 2123-2129 |
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10.1002/2015GL063370 doi PQ20160617 (DE-627)OLC1964147484 (DE-599)GBVOLC1964147484 (PRQ)c2209-cb04fbe1784d8851807c4eb807c13675a67097e2ed3969e765e26eac0fe28d290 (KEY)0026932820150000042000702123magneticfielddepressionwithinelectronholes DE-627 ger DE-627 rakwb eng 550 DNB 38.70 bkl Vasko, I. Y verfasserin aut Magnetic field depression within electron holes 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We analyze electron holes that are spikes of the electrostatic field (up to 500 mV/m) observed by Van Allen Probes in the outer radiation belt. The unexpected feature is the magnetic field depression of about several tens of picotesla within many of the spikes. The earlier observations showed amplification or negligible perturbations of the magnetic field within the electron holes. We suggest that the observed magnetic field depression is due to the diamagnetic current of hot and highly anisotropic population of electrons trapped within the electron holes. The required trapped population should have a density up to 65% of the background plasma density, a temperature up to several keV, and a temperature anisotropy T ⊥ / T ∥ ∼2. We argue that the observed electron holes could be generated due to injections of highly anisotropic plasma sheet electrons into the outer radiation belt. These electron holes may present a source of the seed population due to transport of trapped electrons to higher latitudes and can be potentially used for distant probing of plasma properties in their source region. Observations of electron holes with depressed magnetic field Physical model of the magnetic field depression due to diamagnetic currents Significant amount of keV highly anisotropic electrons within electron holes Nutzungsrecht: © 2015. American Geophysical Union. All Rights Reserved. electron hole diamagnetic effect outer radiation belt Magnetic fields Agapitov, O. V oth Mozer, F oth Artemyev, A. V oth Jovanovic, D oth Enthalten in Geophysical research letters Washington, DC : Union, 1974 42(2015), 7, Seite 2123-2129 (DE-627)129095109 (DE-600)7403-2 (DE-576)01443122X 0094-8276 nnns volume:42 year:2015 number:7 pages:2123-2129 http://dx.doi.org/10.1002/2015GL063370 Volltext http://onlinelibrary.wiley.com/doi/10.1002/2015GL063370/abstract http://search.proquest.com/docview/1676003757 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_47 GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2279 38.70 AVZ AR 42 2015 7 2123-2129 |
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10.1002/2015GL063370 doi PQ20160617 (DE-627)OLC1964147484 (DE-599)GBVOLC1964147484 (PRQ)c2209-cb04fbe1784d8851807c4eb807c13675a67097e2ed3969e765e26eac0fe28d290 (KEY)0026932820150000042000702123magneticfielddepressionwithinelectronholes DE-627 ger DE-627 rakwb eng 550 DNB 38.70 bkl Vasko, I. Y verfasserin aut Magnetic field depression within electron holes 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We analyze electron holes that are spikes of the electrostatic field (up to 500 mV/m) observed by Van Allen Probes in the outer radiation belt. The unexpected feature is the magnetic field depression of about several tens of picotesla within many of the spikes. The earlier observations showed amplification or negligible perturbations of the magnetic field within the electron holes. We suggest that the observed magnetic field depression is due to the diamagnetic current of hot and highly anisotropic population of electrons trapped within the electron holes. The required trapped population should have a density up to 65% of the background plasma density, a temperature up to several keV, and a temperature anisotropy T ⊥ / T ∥ ∼2. We argue that the observed electron holes could be generated due to injections of highly anisotropic plasma sheet electrons into the outer radiation belt. These electron holes may present a source of the seed population due to transport of trapped electrons to higher latitudes and can be potentially used for distant probing of plasma properties in their source region. Observations of electron holes with depressed magnetic field Physical model of the magnetic field depression due to diamagnetic currents Significant amount of keV highly anisotropic electrons within electron holes Nutzungsrecht: © 2015. American Geophysical Union. All Rights Reserved. electron hole diamagnetic effect outer radiation belt Magnetic fields Agapitov, O. V oth Mozer, F oth Artemyev, A. V oth Jovanovic, D oth Enthalten in Geophysical research letters Washington, DC : Union, 1974 42(2015), 7, Seite 2123-2129 (DE-627)129095109 (DE-600)7403-2 (DE-576)01443122X 0094-8276 nnns volume:42 year:2015 number:7 pages:2123-2129 http://dx.doi.org/10.1002/2015GL063370 Volltext http://onlinelibrary.wiley.com/doi/10.1002/2015GL063370/abstract http://search.proquest.com/docview/1676003757 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_47 GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2279 38.70 AVZ AR 42 2015 7 2123-2129 |
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10.1002/2015GL063370 doi PQ20160617 (DE-627)OLC1964147484 (DE-599)GBVOLC1964147484 (PRQ)c2209-cb04fbe1784d8851807c4eb807c13675a67097e2ed3969e765e26eac0fe28d290 (KEY)0026932820150000042000702123magneticfielddepressionwithinelectronholes DE-627 ger DE-627 rakwb eng 550 DNB 38.70 bkl Vasko, I. Y verfasserin aut Magnetic field depression within electron holes 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We analyze electron holes that are spikes of the electrostatic field (up to 500 mV/m) observed by Van Allen Probes in the outer radiation belt. The unexpected feature is the magnetic field depression of about several tens of picotesla within many of the spikes. The earlier observations showed amplification or negligible perturbations of the magnetic field within the electron holes. We suggest that the observed magnetic field depression is due to the diamagnetic current of hot and highly anisotropic population of electrons trapped within the electron holes. The required trapped population should have a density up to 65% of the background plasma density, a temperature up to several keV, and a temperature anisotropy T ⊥ / T ∥ ∼2. We argue that the observed electron holes could be generated due to injections of highly anisotropic plasma sheet electrons into the outer radiation belt. These electron holes may present a source of the seed population due to transport of trapped electrons to higher latitudes and can be potentially used for distant probing of plasma properties in their source region. Observations of electron holes with depressed magnetic field Physical model of the magnetic field depression due to diamagnetic currents Significant amount of keV highly anisotropic electrons within electron holes Nutzungsrecht: © 2015. American Geophysical Union. All Rights Reserved. electron hole diamagnetic effect outer radiation belt Magnetic fields Agapitov, O. V oth Mozer, F oth Artemyev, A. V oth Jovanovic, D oth Enthalten in Geophysical research letters Washington, DC : Union, 1974 42(2015), 7, Seite 2123-2129 (DE-627)129095109 (DE-600)7403-2 (DE-576)01443122X 0094-8276 nnns volume:42 year:2015 number:7 pages:2123-2129 http://dx.doi.org/10.1002/2015GL063370 Volltext http://onlinelibrary.wiley.com/doi/10.1002/2015GL063370/abstract http://search.proquest.com/docview/1676003757 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_47 GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2279 38.70 AVZ AR 42 2015 7 2123-2129 |
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10.1002/2015GL063370 doi PQ20160617 (DE-627)OLC1964147484 (DE-599)GBVOLC1964147484 (PRQ)c2209-cb04fbe1784d8851807c4eb807c13675a67097e2ed3969e765e26eac0fe28d290 (KEY)0026932820150000042000702123magneticfielddepressionwithinelectronholes DE-627 ger DE-627 rakwb eng 550 DNB 38.70 bkl Vasko, I. Y verfasserin aut Magnetic field depression within electron holes 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier We analyze electron holes that are spikes of the electrostatic field (up to 500 mV/m) observed by Van Allen Probes in the outer radiation belt. The unexpected feature is the magnetic field depression of about several tens of picotesla within many of the spikes. The earlier observations showed amplification or negligible perturbations of the magnetic field within the electron holes. We suggest that the observed magnetic field depression is due to the diamagnetic current of hot and highly anisotropic population of electrons trapped within the electron holes. The required trapped population should have a density up to 65% of the background plasma density, a temperature up to several keV, and a temperature anisotropy T ⊥ / T ∥ ∼2. We argue that the observed electron holes could be generated due to injections of highly anisotropic plasma sheet electrons into the outer radiation belt. These electron holes may present a source of the seed population due to transport of trapped electrons to higher latitudes and can be potentially used for distant probing of plasma properties in their source region. Observations of electron holes with depressed magnetic field Physical model of the magnetic field depression due to diamagnetic currents Significant amount of keV highly anisotropic electrons within electron holes Nutzungsrecht: © 2015. American Geophysical Union. All Rights Reserved. electron hole diamagnetic effect outer radiation belt Magnetic fields Agapitov, O. V oth Mozer, F oth Artemyev, A. V oth Jovanovic, D oth Enthalten in Geophysical research letters Washington, DC : Union, 1974 42(2015), 7, Seite 2123-2129 (DE-627)129095109 (DE-600)7403-2 (DE-576)01443122X 0094-8276 nnns volume:42 year:2015 number:7 pages:2123-2129 http://dx.doi.org/10.1002/2015GL063370 Volltext http://onlinelibrary.wiley.com/doi/10.1002/2015GL063370/abstract http://search.proquest.com/docview/1676003757 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-GEO SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_47 GBV_ILN_62 GBV_ILN_154 GBV_ILN_601 GBV_ILN_2279 38.70 AVZ AR 42 2015 7 2123-2129 |
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| author |
Vasko, I. Y |
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550 DNB 38.70 bkl Magnetic field depression within electron holes electron hole diamagnetic effect outer radiation belt Magnetic fields |
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ddc 550 bkl 38.70 misc electron hole misc diamagnetic effect misc outer radiation belt misc Magnetic fields |
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ddc 550 bkl 38.70 misc electron hole misc diamagnetic effect misc outer radiation belt misc Magnetic fields |
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Magnetic field depression within electron holes |
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Magnetic field depression within electron holes |
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Vasko, I. Y |
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10.1002/2015GL063370 |
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magnetic field depression within electron holes |
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Magnetic field depression within electron holes |
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We analyze electron holes that are spikes of the electrostatic field (up to 500 mV/m) observed by Van Allen Probes in the outer radiation belt. The unexpected feature is the magnetic field depression of about several tens of picotesla within many of the spikes. The earlier observations showed amplification or negligible perturbations of the magnetic field within the electron holes. We suggest that the observed magnetic field depression is due to the diamagnetic current of hot and highly anisotropic population of electrons trapped within the electron holes. The required trapped population should have a density up to 65% of the background plasma density, a temperature up to several keV, and a temperature anisotropy T ⊥ / T ∥ ∼2. We argue that the observed electron holes could be generated due to injections of highly anisotropic plasma sheet electrons into the outer radiation belt. These electron holes may present a source of the seed population due to transport of trapped electrons to higher latitudes and can be potentially used for distant probing of plasma properties in their source region. Observations of electron holes with depressed magnetic field Physical model of the magnetic field depression due to diamagnetic currents Significant amount of keV highly anisotropic electrons within electron holes |
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We analyze electron holes that are spikes of the electrostatic field (up to 500 mV/m) observed by Van Allen Probes in the outer radiation belt. The unexpected feature is the magnetic field depression of about several tens of picotesla within many of the spikes. The earlier observations showed amplification or negligible perturbations of the magnetic field within the electron holes. We suggest that the observed magnetic field depression is due to the diamagnetic current of hot and highly anisotropic population of electrons trapped within the electron holes. The required trapped population should have a density up to 65% of the background plasma density, a temperature up to several keV, and a temperature anisotropy T ⊥ / T ∥ ∼2. We argue that the observed electron holes could be generated due to injections of highly anisotropic plasma sheet electrons into the outer radiation belt. These electron holes may present a source of the seed population due to transport of trapped electrons to higher latitudes and can be potentially used for distant probing of plasma properties in their source region. Observations of electron holes with depressed magnetic field Physical model of the magnetic field depression due to diamagnetic currents Significant amount of keV highly anisotropic electrons within electron holes |
| abstract_unstemmed |
We analyze electron holes that are spikes of the electrostatic field (up to 500 mV/m) observed by Van Allen Probes in the outer radiation belt. The unexpected feature is the magnetic field depression of about several tens of picotesla within many of the spikes. The earlier observations showed amplification or negligible perturbations of the magnetic field within the electron holes. We suggest that the observed magnetic field depression is due to the diamagnetic current of hot and highly anisotropic population of electrons trapped within the electron holes. The required trapped population should have a density up to 65% of the background plasma density, a temperature up to several keV, and a temperature anisotropy T ⊥ / T ∥ ∼2. We argue that the observed electron holes could be generated due to injections of highly anisotropic plasma sheet electrons into the outer radiation belt. These electron holes may present a source of the seed population due to transport of trapped electrons to higher latitudes and can be potentially used for distant probing of plasma properties in their source region. Observations of electron holes with depressed magnetic field Physical model of the magnetic field depression due to diamagnetic currents Significant amount of keV highly anisotropic electrons within electron holes |
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Magnetic field depression within electron holes |
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http://dx.doi.org/10.1002/2015GL063370 http://onlinelibrary.wiley.com/doi/10.1002/2015GL063370/abstract http://search.proquest.com/docview/1676003757 |
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Agapitov, O. V Mozer, F Artemyev, A. V Jovanovic, D |
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