Simultaneous Pulsating Aurora and Microburst Observations With Ground-Based Fast Auroral Imagers and CubeSat FIREBIRD-II

Miki Kawamura; Takeshi Sakanoi; Mizuki Fukizawa; Yoshizumi Miyoshi; Keisuke Hosokawa; Fuminori Tsuchiya; Yuto Katoh; Yasunobu Ogawa; Kazushi Asamura; Shinji Saito; Harlan Spence; Arlo Johnson; Shin'ichiro Oyama; Urban Brändström

doi:10.1029/2021GL094494

Simultaneous Pulsating Aurora and Microburst Observations With Ground-Based Fast Auroral Imagers and CubeSat FIREBIRD-II

Miki Kawamura, Takeshi Sakanoi, Mizuki Fukizawa, Yoshizumi Miyoshi, Keisuke Hosokawa, Fuminori Tsuchiya, Yuto Katoh, Yasunobu Ogawa, Kazushi Asamura, Shinji Saito, Harlan Spence, Arlo Johnson, Shin'ichiro Oyama, Urban Brändström

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

We report on the relationship between a pulsating aurora and a relativistic electron microburst using simultaneous observations of ground-based fast auroral imagers with the FIREBIRD-Ⅱ CubeSat for the first time. We conducted a detailed analysis of an event on October 8, 2018 and found that the occurrence of the pulsating aurora with internal modulations corresponds to the flux enhancement of electrons with energy ranging from ∼220 keV to >1 MeV detected with Flight Unit 4, one of FIREBIRD's CubeSat, with a time delay of ∼585 ms. Combining of this time delay result and time of flight model, we suggest that the pulsating aurora and the microburst occur simultaneously due to the chorus waves at different latitudes along the same field-line as predicted by Miyoshi et al. (2020, https://doi.org/10.1029/2020gl090360).

Original language	English
Article number	e2021GL094494
Journal	Geophysical Research Letters
Volume	48
Issue number	18
DOIs	https://doi.org/10.1029/2021GL094494
Publication status	Published - 2021 Sept 28

Keywords

chorus waves
microbursts
pulsating aurora

ASJC Scopus subject areas

Geophysics
Earth and Planetary Sciences(all)

Access to Document

10.1029/2021GL094494

Cite this

Kawamura, M., Sakanoi, T., Fukizawa, M., Miyoshi, Y., Hosokawa, K., Tsuchiya, F., Katoh, Y., Ogawa, Y., Asamura, K., Saito, S., Spence, H., Johnson, A., Oyama, S., & Brändström, U. (2021). Simultaneous Pulsating Aurora and Microburst Observations With Ground-Based Fast Auroral Imagers and CubeSat FIREBIRD-II. Geophysical Research Letters, 48(18), [e2021GL094494]. https://doi.org/10.1029/2021GL094494

Kawamura, M, Sakanoi, T, Fukizawa, M, Miyoshi, Y, Hosokawa, K, Tsuchiya, F , Katoh, Y, Ogawa, Y, Asamura, K, Saito, S, Spence, H, Johnson, A, Oyama, S & Brändström, U 2021, 'Simultaneous Pulsating Aurora and Microburst Observations With Ground-Based Fast Auroral Imagers and CubeSat FIREBIRD-II', Geophysical Research Letters, vol. 48, no. 18, e2021GL094494. https://doi.org/10.1029/2021GL094494

@article{3c2426120b4643d9bafc7d3f3996af8b,

title = "Simultaneous Pulsating Aurora and Microburst Observations With Ground-Based Fast Auroral Imagers and CubeSat FIREBIRD-II",

abstract = "We report on the relationship between a pulsating aurora and a relativistic electron microburst using simultaneous observations of ground-based fast auroral imagers with the FIREBIRD-Ⅱ CubeSat for the first time. We conducted a detailed analysis of an event on October 8, 2018 and found that the occurrence of the pulsating aurora with internal modulations corresponds to the flux enhancement of electrons with energy ranging from ∼220 keV to >1 MeV detected with Flight Unit 4, one of FIREBIRD's CubeSat, with a time delay of ∼585 ms. Combining of this time delay result and time of flight model, we suggest that the pulsating aurora and the microburst occur simultaneously due to the chorus waves at different latitudes along the same field-line as predicted by Miyoshi et al. (2020, https://doi.org/10.1029/2020gl090360).",

keywords = "chorus waves, microbursts, pulsating aurora",

author = "Miki Kawamura and Takeshi Sakanoi and Mizuki Fukizawa and Yoshizumi Miyoshi and Keisuke Hosokawa and Fuminori Tsuchiya and Yuto Katoh and Yasunobu Ogawa and Kazushi Asamura and Shinji Saito and Harlan Spence and Arlo Johnson and Shin'ichiro Oyama and Urban Br{\"a}ndstr{\"o}m",

note = "Funding Information: This work has been supported by JSPS KAKENHI JP 15H05747, 16H06286, 18H03727, 20H01959, 20H01955, and 21H04526. The operation of the EMCCD camera at Sodankyl{\"a} has been supported by Sodankyl{\"a} Geophysical Observatory (SGO). The operation of the EMCCD camera at Tjautjas has been supported by Swedish Institute of Space Physics (IRF). FIREBIRD data was made possible by the National Science Foundation grant numbers: 0838034, 1339414. Publisher Copyright: {\textcopyright} 2021. American Geophysical Union. All Rights Reserved.",

year = "2021",

month = sep,

day = "28",

doi = "10.1029/2021GL094494",

language = "English",

volume = "48",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "American Geophysical Union",

number = "18",

}

TY - JOUR

T1 - Simultaneous Pulsating Aurora and Microburst Observations With Ground-Based Fast Auroral Imagers and CubeSat FIREBIRD-II

AU - Kawamura, Miki

AU - Sakanoi, Takeshi

AU - Fukizawa, Mizuki

AU - Miyoshi, Yoshizumi

AU - Hosokawa, Keisuke

AU - Tsuchiya, Fuminori

AU - Katoh, Yuto

AU - Ogawa, Yasunobu

AU - Asamura, Kazushi

AU - Saito, Shinji

AU - Spence, Harlan

AU - Johnson, Arlo

AU - Oyama, Shin'ichiro

AU - Brändström, Urban

N1 - Funding Information: This work has been supported by JSPS KAKENHI JP 15H05747, 16H06286, 18H03727, 20H01959, 20H01955, and 21H04526. The operation of the EMCCD camera at Sodankylä has been supported by Sodankylä Geophysical Observatory (SGO). The operation of the EMCCD camera at Tjautjas has been supported by Swedish Institute of Space Physics (IRF). FIREBIRD data was made possible by the National Science Foundation grant numbers: 0838034, 1339414. Publisher Copyright: © 2021. American Geophysical Union. All Rights Reserved.

PY - 2021/9/28

Y1 - 2021/9/28

N2 - We report on the relationship between a pulsating aurora and a relativistic electron microburst using simultaneous observations of ground-based fast auroral imagers with the FIREBIRD-Ⅱ CubeSat for the first time. We conducted a detailed analysis of an event on October 8, 2018 and found that the occurrence of the pulsating aurora with internal modulations corresponds to the flux enhancement of electrons with energy ranging from ∼220 keV to >1 MeV detected with Flight Unit 4, one of FIREBIRD's CubeSat, with a time delay of ∼585 ms. Combining of this time delay result and time of flight model, we suggest that the pulsating aurora and the microburst occur simultaneously due to the chorus waves at different latitudes along the same field-line as predicted by Miyoshi et al. (2020, https://doi.org/10.1029/2020gl090360).

AB - We report on the relationship between a pulsating aurora and a relativistic electron microburst using simultaneous observations of ground-based fast auroral imagers with the FIREBIRD-Ⅱ CubeSat for the first time. We conducted a detailed analysis of an event on October 8, 2018 and found that the occurrence of the pulsating aurora with internal modulations corresponds to the flux enhancement of electrons with energy ranging from ∼220 keV to >1 MeV detected with Flight Unit 4, one of FIREBIRD's CubeSat, with a time delay of ∼585 ms. Combining of this time delay result and time of flight model, we suggest that the pulsating aurora and the microburst occur simultaneously due to the chorus waves at different latitudes along the same field-line as predicted by Miyoshi et al. (2020, https://doi.org/10.1029/2020gl090360).

KW - chorus waves

KW - microbursts

KW - pulsating aurora

UR - http://www.scopus.com/inward/record.url?scp=85115808143&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85115808143&partnerID=8YFLogxK

U2 - 10.1029/2021GL094494

DO - 10.1029/2021GL094494

M3 - Article

AN - SCOPUS:85115808143

SN - 0094-8276

VL - 48

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 18

M1 - e2021GL094494

ER -

Simultaneous Pulsating Aurora and Microburst Observations With Ground-Based Fast Auroral Imagers and CubeSat FIREBIRD-II

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this