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MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields
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| Zeitschriftentitel: | Geophysical Research Letters |
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| Personen und Körperschaften: | , , , , , , , , , , , , , , |
| In: | Geophysical Research Letters, 43, 2016, 3, S. 939-944 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Geophysical Union (AGU)
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| Schlagwörter: |
| author_facet |
Harada, Y. Mitchell, D. L. Halekas, J. S. McFadden, J. P. Mazelle, C. Connerney, J. E. P. Espley, J. Brain, D. A. Larson, D. E. Lillis, R. J. Hara, T. Livi, R. DiBraccio, G. A. Ruhunusiri, S. Jakosky, B. M. Harada, Y. Mitchell, D. L. Halekas, J. S. McFadden, J. P. Mazelle, C. Connerney, J. E. P. Espley, J. Brain, D. A. Larson, D. E. Lillis, R. J. Hara, T. Livi, R. DiBraccio, G. A. Ruhunusiri, S. Jakosky, B. M. |
|---|---|
| author |
Harada, Y. Mitchell, D. L. Halekas, J. S. McFadden, J. P. Mazelle, C. Connerney, J. E. P. Espley, J. Brain, D. A. Larson, D. E. Lillis, R. J. Hara, T. Livi, R. DiBraccio, G. A. Ruhunusiri, S. Jakosky, B. M. |
| spellingShingle |
Harada, Y. Mitchell, D. L. Halekas, J. S. McFadden, J. P. Mazelle, C. Connerney, J. E. P. Espley, J. Brain, D. A. Larson, D. E. Lillis, R. J. Hara, T. Livi, R. DiBraccio, G. A. Ruhunusiri, S. Jakosky, B. M. Geophysical Research Letters MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields General Earth and Planetary Sciences Geophysics |
| author_sort |
harada, y. |
| spelling |
Harada, Y. Mitchell, D. L. Halekas, J. S. McFadden, J. P. Mazelle, C. Connerney, J. E. P. Espley, J. Brain, D. A. Larson, D. E. Lillis, R. J. Hara, T. Livi, R. DiBraccio, G. A. Ruhunusiri, S. Jakosky, B. M. 0094-8276 1944-8007 American Geophysical Union (AGU) General Earth and Planetary Sciences Geophysics http://dx.doi.org/10.1002/2015gl067040 <jats:title>Abstract</jats:title><jats:p>Energy‐time dispersed electron signatures are observed by the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission in the vicinity of strong Martian crustal magnetic fields. Analysis of pitch angle distributions indicates that these dispersed electrons are typically trapped on closed field lines formed above strong crustal magnetic sources. Most of the dispersed electron signatures are characterized by peak energies decreasing with time rather than increasing peak energies. These properties can be explained by impulsive and local injection of hot electrons into closed field lines and subsequent dispersion by magnetic drift of the trapped electrons. In addition, the dispersed flux enhancements are often bursty and sometimes exhibit clear periodicity, suggesting that the injection and trapping processes are intrinsically time dependent and dynamic. These MAVEN observations demonstrate that common physical processes can operate in both global intrinsic magnetospheres and local crustal magnetic fields.</jats:p> MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields Geophysical Research Letters |
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| title |
MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields |
| title_unstemmed |
MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields |
| title_full |
MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields |
| title_fullStr |
MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields |
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MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields |
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MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields |
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maven observations of energy‐time dispersed electron signatures in martian crustal magnetic fields |
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General Earth and Planetary Sciences Geophysics |
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http://dx.doi.org/10.1002/2015gl067040 |
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2016 |
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939-944 |
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<jats:title>Abstract</jats:title><jats:p>Energy‐time dispersed electron signatures are observed by the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission in the vicinity of strong Martian crustal magnetic fields. Analysis of pitch angle distributions indicates that these dispersed electrons are typically trapped on closed field lines formed above strong crustal magnetic sources. Most of the dispersed electron signatures are characterized by peak energies decreasing with time rather than increasing peak energies. These properties can be explained by impulsive and local injection of hot electrons into closed field lines and subsequent dispersion by magnetic drift of the trapped electrons. In addition, the dispersed flux enhancements are often bursty and sometimes exhibit clear periodicity, suggesting that the injection and trapping processes are intrinsically time dependent and dynamic. These MAVEN observations demonstrate that common physical processes can operate in both global intrinsic magnetospheres and local crustal magnetic fields.</jats:p> |
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| author | Harada, Y., Mitchell, D. L., Halekas, J. S., McFadden, J. P., Mazelle, C., Connerney, J. E. P., Espley, J., Brain, D. A., Larson, D. E., Lillis, R. J., Hara, T., Livi, R., DiBraccio, G. A., Ruhunusiri, S., Jakosky, B. M. |
| author_facet | Harada, Y., Mitchell, D. L., Halekas, J. S., McFadden, J. P., Mazelle, C., Connerney, J. E. P., Espley, J., Brain, D. A., Larson, D. E., Lillis, R. J., Hara, T., Livi, R., DiBraccio, G. A., Ruhunusiri, S., Jakosky, B. M., Harada, Y., Mitchell, D. L., Halekas, J. S., McFadden, J. P., Mazelle, C., Connerney, J. E. P., Espley, J., Brain, D. A., Larson, D. E., Lillis, R. J., Hara, T., Livi, R., DiBraccio, G. A., Ruhunusiri, S., Jakosky, B. M. |
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| description | <jats:title>Abstract</jats:title><jats:p>Energy‐time dispersed electron signatures are observed by the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission in the vicinity of strong Martian crustal magnetic fields. Analysis of pitch angle distributions indicates that these dispersed electrons are typically trapped on closed field lines formed above strong crustal magnetic sources. Most of the dispersed electron signatures are characterized by peak energies decreasing with time rather than increasing peak energies. These properties can be explained by impulsive and local injection of hot electrons into closed field lines and subsequent dispersion by magnetic drift of the trapped electrons. In addition, the dispersed flux enhancements are often bursty and sometimes exhibit clear periodicity, suggesting that the injection and trapping processes are intrinsically time dependent and dynamic. These MAVEN observations demonstrate that common physical processes can operate in both global intrinsic magnetospheres and local crustal magnetic fields.</jats:p> |
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| spelling | Harada, Y. Mitchell, D. L. Halekas, J. S. McFadden, J. P. Mazelle, C. Connerney, J. E. P. Espley, J. Brain, D. A. Larson, D. E. Lillis, R. J. Hara, T. Livi, R. DiBraccio, G. A. Ruhunusiri, S. Jakosky, B. M. 0094-8276 1944-8007 American Geophysical Union (AGU) General Earth and Planetary Sciences Geophysics http://dx.doi.org/10.1002/2015gl067040 <jats:title>Abstract</jats:title><jats:p>Energy‐time dispersed electron signatures are observed by the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission in the vicinity of strong Martian crustal magnetic fields. Analysis of pitch angle distributions indicates that these dispersed electrons are typically trapped on closed field lines formed above strong crustal magnetic sources. Most of the dispersed electron signatures are characterized by peak energies decreasing with time rather than increasing peak energies. These properties can be explained by impulsive and local injection of hot electrons into closed field lines and subsequent dispersion by magnetic drift of the trapped electrons. In addition, the dispersed flux enhancements are often bursty and sometimes exhibit clear periodicity, suggesting that the injection and trapping processes are intrinsically time dependent and dynamic. These MAVEN observations demonstrate that common physical processes can operate in both global intrinsic magnetospheres and local crustal magnetic fields.</jats:p> MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields Geophysical Research Letters |
| spellingShingle | Harada, Y., Mitchell, D. L., Halekas, J. S., McFadden, J. P., Mazelle, C., Connerney, J. E. P., Espley, J., Brain, D. A., Larson, D. E., Lillis, R. J., Hara, T., Livi, R., DiBraccio, G. A., Ruhunusiri, S., Jakosky, B. M., Geophysical Research Letters, MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields, General Earth and Planetary Sciences, Geophysics |
| title | MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields |
| title_full | MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields |
| title_fullStr | MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields |
| title_full_unstemmed | MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields |
| title_short | MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields |
| title_sort | maven observations of energy‐time dispersed electron signatures in martian crustal magnetic fields |
| title_unstemmed | MAVEN observations of energy‐time dispersed electron signatures in Martian crustal magnetic fields |
| topic | General Earth and Planetary Sciences, Geophysics |
| url | http://dx.doi.org/10.1002/2015gl067040 |