2017年8月
Optical observations of the Phoenicid meteor shower in 2014 and activity of comet 289P/Blanpain in the early 20th century
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
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- 巻
- 69
- 号
- 4
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1093/pasj/psx035
- 出版者・発行元
- OXFORD UNIV PRESS
Optical observations of the Phoenicid meteor shower were made in North Carolina, USA, with seven video cameras and two digital cameras over a period of about 5 hr between 22:30 UT on 2014 December 1 and 04:00 UT on December 2. Activity of the Phoenicids was confirmed during this period, including the predicted maximum around 00 h UT on December 2. The activity level was not high, considering that 29 Phoenicid meteors and 109 non-Phoenicid meteors were detected. A gentle peak in the activity was recognized between 01:00 UT and 03:00 UT on December 2. The compact radiant of the Phoenicids agreed well with what was predicted. A comparison of the observed and predicted peak times, radiant position, bright meteors' dominance, and radiants' spread revealed that the observed meteors originated from the dust trails formed by comet 289P/Blanpain at the perihelion passage in the early 20th century. This indicates that the parent body of the Phoenicids, comet 289P/Blanpain, was still active as a comet in the early 20th century and provided meteoroids, although its activity level was significantly weaker than that at the beginning of the 19th century.
- リンク情報
- ID情報
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- DOI : 10.1093/pasj/psx035
- ISSN : 0004-6264
- eISSN : 2053-051X
- Web of Science ID : WOS:000410491300003