[vsnet-j 2148] Bursts from the Anomalous X-ray Pulsar 1E 2259+586

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

　以下の情報が入っています。GRB に近い(と言ってもよいかな)種族の天体で、
　もしかしたら可視光バーストが見えていた可能性もあるかも知れません。日本時間
　で見えていた時間帯で、天気も比較的良かったですので、もしかして当日同領域を
　画像写真等で撮られた方がおられましたら調べていただけると興味深いと思います。

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  1432
SUBJECT: SGR-like Bursts from the AXP 1E 2259+586
DATE:    02/06/19 15:32:56 GMT
FROM:    Peter Woods at UAH/MSFC  <peter.woods@msfc.nasa.gov>

Bursts from the Anomalous X-ray Pulsar 1E 2259+586

V. M. Kaspi (McGill University/MIT), F. P. Gavriil (McGill University) and 
P. M. Woods (USRA/NSSTC) report:

We have detected several short X-ray bursts from the direction of the anomalous
X-ray pulsar 1E 2259+586, using the PCA aboard RXTE.  The bursting behavior was
detected during a routine 15-ks duration monitoring observation which began
June 18, 2002 at 15:39 UTC.  In this observation, ~45 bursts were detected,
most of which had duration < 1-2 sec, reminiscent of those seen in soft gamma
repeaters.   The mean 1-s flux per burst is approximately 10{^-8} erg/cm^2/s
(2-20 keV).  The Chandra-determined position for this pulsar is J2000 RA 23 01
08.295, DEC +58 52 44.45 (uncertainty 0".60 in radius, 99% confidence; Hulleman
et al. 2001, ApJ, 563, L49).  Observations at other wavebands are encouraged.

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