[X-ray-star:635] MAXI J1820+070 going to the intermediate state

maxiweb at maxi.riken.jp maxiweb at maxi.riken.jp
Mon Sep 24 11:41:49 JST 2018


MAXI J1820+070 shows a soft-to-hard state transition (H. Negoro).

=====================
MAXI transient alert
2018-09-22 09:04:17 UT
=====================

[Ground Trigger ID]
ID          :  8383849998

[Count Weighted Position]
RA,Dec: (275.091,   7.185)
Galac.: ( 35.858,  10.151)
Eclip.: (275.866,  30.521)

[Triggered Criteria]

[Highest Significance]
DPTC  : 1221642240
UT    : 2018/09/22 09:04:17
on    : 1d (S-band)
sigma : 5.2

[Observed flux]
S :    115 +-    22 mCrab
L :    546 +-    49 mCrab
M :     93 +-    33 mCrab
H :     33 +-    88 mCrab

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
0.00    443.7 (275.09,   7.19)  MAXI J1820+070
3.38   -122.5 (271.96,   5.86)  V426 Oph

[Sun/Moon (RA, Dec)]
Sun :  (179.138, 0.373)
Moon:  (330.930, -14.086)
age: 12.21 day

[Latitude/Longitude]
(17.64N, 131.73E)


We will report more detailed information on this event to ATel and/or GCN.

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For more information:
 http://maxi.riken.jp/alert/novae/8383849998/8383849998.htm

About MAXI data:
 http://maxi.riken.jp/




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