2008年6月
The 2006 radio outbursts of a microquasar Cygnus X-3: Observations and data
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
- 巻
- 60
- 号
- 3
- 開始ページ
- 465
- 終了ページ
- 473
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1093/pasj/60.3.465
- 出版者・発行元
- OXFORD UNIV PRESS
We present the results of multi-frequency observations of radio outbursts of the microquasar Cygnus X-3 in 2006 February and March with the Nobeyama 45-m telescope, the Nobeyama Millimeter Array, and the Yamaguchi 32-m telescope. Since the prediction of a flare by RATAN-600, the source was monitored from January 27 (UT) with these radio telescopes. At the eighteenth day after the quench of activity, successive flares exceeding 1 Jy were successfully observed. The time scale of the variability in the active phase is presumably shorter in higher frequency bands. We also present the result of a follow-up VLBI observation at 8.4 GHz with the Japanese VLBI Network 2.6 d after the first rise. A VLBI image exhibits a single core with a size of < 8 mas (80 AU). The observed image is almost stable, although the core shows a rapid variation in the flux density. No jet structure can be seen at a sensitivity of T-b (brightness temperature) = 7.5 x 10(5) K.
- リンク情報
- ID情報
-
- DOI : 10.1093/pasj/60.3.465
- ISSN : 0004-6264
- eISSN : 2053-051X
- ORCIDのPut Code : 103305081
- SCOPUS ID : 48249125847
- Web of Science ID : WOS:000258818000007