GCN Circular 21241
Subject
LIGO/Virgo G288732 : MAXI/GSC observations
Date
2017-06-10T13:29:15Z (8 years ago)
From
Satoshi Sugita at Tokyo Inst. of Tech. <sugita@hp.phys.titech.ac.jp>
S. Sugita, N. Kawai (Tokyo Tech), M. Serino (RIKEN), H. Negoro (Nihon U.),
S. Ueno, H. Tomida, M. Ishikawa, Y. Sugawara, N.Isobe (JAXA),
T. Mihara, M. Sugizaki, S. Nakahira, W. Iwakiri, M. Shidatsu, M.
Matsuoka (RIKEN),
T. Yoshii, Y. Tachibana, S. Harita, Y. Muraki, K. Morita (Tokyo Tech),
A. Yoshida, T. Sakamoto, Y. Kawakubo, Y. Kitaoka, T. Hashimoto (AGU),
H. Tsunemi, T. Yoneyama (Osaka U.),
M. Nakajima, T. Kawase, A. Sakamaki (Nihon U.),
Y. Ueda, T. Hori, A. Tanimoto, S. Oda (Kyoto U.),
Y. Tsuboi, Y. Nakamura, R. Sasaki (Chuo U.),
M. Yamauchi, C. Hanyu, K, Hidaka (Miyazaki U.),
T. Kawamuro (NAOJ),
K. Yamaoka (Nagoya U.)
report on behalf of the MAXI team:
We examined the MAXI/GSC all-sky X-ray images (2-20 keV) obtained
in the orbit and the day after the LVC trigger
G288732 at 2017-06-08 02:01:16.492 UTC (GCN 21221).
At the trigger time of G288732,
the high-voltage of MAXI/GSC was off.
One day image covers 100% of the 90% regions
in the bayestar skymap.
No significant new source was found in these images.
The upper limits for the X-ray flux are different depending
on the part of the sky.
For instance, typical 2-20 keV 1-sigma (3-sigma) upper limits obtained
from the one-day images are 3(9) mCrab.
MAXI/GSC also observed the position of the LAT counterpart
(Omodei et al., GCN 21227). The first scan after the event
was at 2017-06-08T17:39:41 (UT). No significant emission was observed
at the position at the scan. The 1-sigma (3-sigma) upper limits in 2-20 keV
are 8 (24) mCrab.
If you require information of X-ray flux by MAXI/GSC at specific coordinates,
please contact the submitter of this circular by email.