| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2012-01-10 |
| タイトル |
|
|
タイトル |
Detection of Acoustic/Infrasonic/Seismic Waves Generated by Hypersonic Re-Entry of the HAYABUSA Capsule and Fragmented Parts of the Spacecraft |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Earth |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Atmosphere |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Meteors |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Artificial |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Space vehicles |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
YAMAMOTO, Masa-yuki
ISHIHARA, Yoshiaki
HIRAMATSU, Yoshihiro
KITAMURA, Kazuki
UEDA, Masayoshi
SHIBA, Yasuo
FURUMOTO, Muneyoshi
FUJITA, Kazuhisa
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Acoustic/infrasonic/seismic waves were observed during the re-entry of the Japanese asteroid explorer "HAYABUSA” at 6 ground sites in Woomera, Australia, on 2010 June 13. Overpressure values of infrasound waves were detected at 3 ground sites in a range from 1.3 Pa, 1.0 Pa, and 0.7 Pa with each distance of 36.9 km, 54.9 km, and 67.8 km, respectively, apart from the SRC trajectory. Seismic waveforms through air-to-ground coupling processes were also detected at 6 sites, showing a one-to-one correspondence to infrasound waves at all simultaneous observation sites. Audible sound up to 1 kHz was recorded at one site with a distance of 67.8 km. The mother spacecraft was fragmented from 75 km down to 38 km with a few explosive enhancements of emissions. A persistent train of HAYABUSA re-entry was confirmed at an altitude range of between 92 km down to 82 km for about 3 minutes. Light curves of 136 fragmented parts of the spacecraft were analyzed in detail based on video observations taken at multiple ground sites, being classified into three types of fragmentations, i.e., melting, explosive, and re-fragmented types. In a comparison between infrasonic waves and video-image analyses, regarding the generation of sonic-boom type shock waves by hypersonically moving artificial meteors, both the sample return capsule and fragmented parts of the mother spacecraft, at an altitude of 401 km were confirmed with a one-to-one correspondence with each other. |
| 書誌情報 |
Publications of the Astronomical Society of Japan
巻 63,
号 5,
p. 971-978,
発行日 2011-10-25
|
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0004-6264 |
| 書誌レコードID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA1082896X |
| 権利 |
|
|
権利情報 |
(c) 2011 Astronomical Society of Japan |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 出版者 |
|
|
出版者 |
Astronomical Society of Japan |
hayabusa.wav (1.3 MB)
PASJ_63_5_971.pdf (940.6 kB)
