A mm-wave Flare from Cyg X-3
ATel #2053; TSUBOI, M.(ISAS/JAXA),MIYAZAKI, A.(NAOJ),NAKANISHI, K.(NAOJ),KAMEGAI, K.(ISAS/JAXA),KOTANI, T.(AOYAMA GAKUIN UNIV.)
on 22 May 2009; 22:19 UT
Distributed as an Instant Email Notice Request For Observations
Credential Certification: Masato TSUBOI (tsuboi@vsop.isas.jaxa.jp)
Subjects: Radio, Millimeter, Request for Observations, Binary, Black Hole, Transient
We report that the microquasar Cyg X-3 (20:32:25.77, 40:57:27.97, J2000)
is currently undergoing a mm-wave flare.
A peak activity exceeding 0.4 Jy at 43 GHz has been detected with the 45-m telescope of the Nobeyama Radio Observatory at 2009/05/20 20:40
(UT), followed by a decay with an e-folding time of 150 min.
At 86 GHz, the peak is higher than 0.3 Jy, and the rise and decay profile shows a more complicated structure.
The daily monitoring by the 45-m will be continued at least till 05/31.
Follow up at all frequencies are strongly encouraged.
