[vsnet-grb-info 22348] LIGO/Virgo S190510g: MAXI/GSC Observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  24447
SUBJECT: LIGO/Virgo S190510g: MAXI/GSC Observations
DATE:    19/05/10 09:53:26 GMT
FROM:    Satoshi Sugita at Aoyama Gakuin U.  <sugita at phys.aoyama.ac.jp>

N. Kawai, M. Sugizaki (Tokyo Tech),
H. Negoro (Nihon U.), S. Sugita, M. Serino (AGU),
M. Nakajima, W. Maruyama, M. Aoki, K. Kobayashi (Nihon U.),
S. Nakahira, T. Mihara, T. Tamagawa, M. Matsuoka (RIKEN),
T. Sakamoto, H. Nishida, A. Yoshida (AGU),
Y. Tsuboi, W. Iwakiri, R. Sasaki, H. Kawai, T. Sato (Chuo U.),
M. Shidatsu (Ehime U.),
M. Oeda, K. Shiraishi (Tokyo Tech),
S. Ueno, H. Tomida, M. Ishikawa, Y. Sugawara, N. Isobe, R. Shimomukai,
M. Tominaga (JAXA),
Y. Ueda, A. Tanimoto, S. Yamada, S. Ogawa, K. Setoguchi, T. Yoshitake
(Kyoto U.),
H. Tsunemi, T. Yoneyama, K. Asakura, S. Ide (Osaka U.),
M. Yamauchi, S. Iwahori, Y. Kurihara (Miyazaki U.),
T. Kawamuro (NAOJ), K. Yamaoka (Nagoya U.), Y. Kawakubo (LSU)
report on behalf of the MAXI team:

We examined MAXI/GSC all-sky X-ray images (2-20 keV)
after the LVC trigger S190510g at 2019-05-10 02:59:39.292 UTC (GCN 24442).

At the trigger time of S190510g, the high-voltage of MAXI/GSC was off,
and it was turned on at T0+358 sec (=T0+6.0 min).
The first one-orbit (92 min) scan observation with GSC after the event
covered 91%
of the 90% credible region of the bayestar skymap from 03:05:37 to
04:15:54 UTC (T0+358 to T0+4575 sec).

No significant new source was found in the region in the one-orbit
scan observation.
A typical 1-sigma averaged upper limit obtained in one scan observation
is 20 mCrab at 2-20 keV.

If you require information about X-ray flux by MAXI/GSC at specific coordinates,
please contact the submitter of this circular by email.