| DOI: | 10.1002/2018JA025218
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| Scopus记录号: | 2-s2.0-85045522062
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| 论文题名: | Reply to Comment by Nishimura Et Al. |
| 作者: | Mozer F.S.; Hull A.; Lejosne S.; Vasko I.Y.
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| 刊名: | Journal of Geophysical Research: Space Physics
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| ISSN: | 21699380
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| 出版年: | 2018
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| 卷: | 123, 期:3 | | 起始页码: | 2071
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| 结束页码: | 2077
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| 语种: | 英语
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| 英文关键词: | chorus cannot precipitate electrons observed in pulsating auroras
; time domain structures cause electron precipitation in pulsating auroras
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| 英文摘要: | Nishimura et al. (2010, https://doi.org/10.1126/science.1193186, 2011, https://doi.org/10.1029/2011JA016876, 2013, https://doi.org/10.1029/2012JA018242, and in their comment, hereafter called N18) have suggested that chorus waves interact with equatorial electrons to produce pulsating auroras. We agree that chorus can scatter electrons >10 keV, as do Time Domain Structures (TDSs). Lower-energy electrons occurring in pulsating auroras cannot be produced by chorus, but such electrons are scattered and accelerated by TDS. TDSs often occur with chorus and have power in their spectra at chorus frequencies. Thus, the absence of power at low frequencies is not evidence that TDSs are absent, as an example shows. Through examination of equatorial electric field waveforms and electron pitch angle distributions measured on the Time History of Events and Macroscale Interactions during Substorms satellites (in place of examining field and particle spectra, as done by Nishimura et al.), we show that chorus cannot produce the field-aligned electrons associated with pulsating auroras in the Nishimura et al. (2010, https://doi.org/10.1126/science.1193186) events, but TDSs can. Equatorial field-aligned electron distributions associated with pulsating auroras and created by TDS in the absence of chorus or any other wave at the equator are also shown. ©2018. American Geophysical Union. All Rights Reserved. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/114329
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Space Sciences Laboratory, University of California, Berkeley, CA, United States
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| Recommended Citation: | |
Mozer F.S.,Hull A.,Lejosne S.,et al. Reply to Comment by Nishimura Et Al.[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(3)
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