講演情報
[PEM13-P06]Plasma waves causing 20 Hz intensity modulation of pulsating aurora
*Herbert Akihito Uchida1、Ryuho Kataoka2,1、Kiyoka Murase1、Shoya Matsuda3、Yoshiya Kasahara4、Masafumi Shoji5、Yoshizumi Miyoshi5、Iku Shinohara3、Ayako Matsuoka3、Satoshi Kurita5、Keisuke Hosokawa6 (1.The Graduate University for Advanced Studies、2.National Institute of Polar Research、3.Institute of Space and Astronautical Science、4.Kanazawa University、5.Institute for Space–Earth Environmental Research、6.The University of Electro-Communications)
キーワード：
Pulsating aurora、Chorus waves、Fast modulation
We observed ~20 Hz intensity modulation of pulsating aurora at Syowa Station by high-speed camera pointing at magnetic zenith for a few min time interval, 30 min after the aurora breakup occurred on September 22, 2018. The footprints of the Arase satellite was located within the all-sky field of view at that time, and ~20 Hz intensity modulation was observed in the intensity of the lower band chorus waves. We present the possible correlations between the plasma waves and pulsating aurora in more detail, and examine the resonant energy quantitatively.