| Title: |
Simultaneous Precipitation of Sub-Relativistic Electron Microburst and Pulsating Aurora Electrons |
| Authors: |
Namekawa, Taku; Mitani, Takefumi; Asamura, Kazushi; Mioshi, Yoshizumi; Hosokawa, Keisuke; Lessard, Marc R; Moser, Chrystal; Halford, Alexa J.; Sakanoi, Takeshi; Kawamura, Miki; Nosé, Masahito; Nomura, Reiko; Teramoto, Mariko; Shumko, Mykhaylo; Lynch, Kristina A; Jaynes, Allison N; McHarg, Matthew G |
| Publisher Information: |
Authorea, Inc. |
| Publication Year: |
2023 |
| Collection: |
The Winnower (via CrossRef) |
| Description: |
We have identified for the first time an energy-time dispersion of precipitating electron flux in a pulsating aurora patch, ranging from 6.7 keV to 580 keV, through simultaneous in-situ observations of sub-relativistic electrons of microburst precipitations and lower-energy electrons using the LAMP sounding rocket launched from the Poker Flat Research Range in Alaska. Our observations reveal that precipitating electrons with energies of 180-320 keV were observed first, followed by 250-580 keV electrons 0-30 ms later, and finally, after 500-1000 ms, 6.7-14.6 keV electrons were observed. The identified energy-time dispersion is consistent with the theoretical estimation that the relativistic electron microbursts are a high-energy tail of pulsating aurora electrons, which are caused by chorus waves propagating along the field line. |
| Document Type: |
other/unknown material |
| Language: |
unknown |
| DOI: |
10.22541/essoar.168167378.83120518/v1 |
| Availability: |
https://doi.org/10.22541/essoar.168167378.83120518/v1 |
| Accession Number: |
edsbas.86CBBD7 |
| Database: |
BASE |