[X-ray-star:863] MAXI J1816-195 [TBD]

[maxiweb at maxi.riken.jp]

MAXI/GSC detects a probable new X-ray nova (H. Negroro).

=====================
MAXI transient alert
2022-06-07 07:32:38 UT
=====================

[Ground Trigger ID]
ID          :  9737849999

[Count Weighted Position]
RA,Dec: (274.600, -19.900)
Galac.: ( 11.545,  -2.015)
Eclip.: (274.333,   3.470)

[Triggered Criteria]

[Highest Significance]
DPTC  : 1338622376
UT    : 2022/06/07 07:32:38
on    : 4orb (S-band)
sigma : 2.9

[Observed flux]
S :     47 +-    16 mCrab
L :     57 +-    19 mCrab
M :     66 +-    28 mCrab
H :    139 +-   100 mCrab

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
1.70  unknown (272.87, -19.42)  PSR J1811-1925,PSR J1811-1926
2.02     21.7 (272.46, -19.73)  XTE J1810-197,AXP J1810-197
2.05     19.7 (272.61, -19.07)  XTE J1810-189
2.20  unknown (273.12, -18.21)  XTE J1812-182
2.34  unknown (272.16, -20.41)  SGR 1806-20
2.36  unknown (273.36, -17.85)  AGPS 273.4-17.8,HESS J1813-178
2.79     16.1 (273.12, -22.33)  MAXI J1810-222
2.85      4.8 (274.66, -17.05)  SAX J1818.6-1703
2.89    371.6 (273.63, -17.16)  GX 13+1,Sgr XR-2,V5512 Sgr
3.09      3.4 (271.38, -20.52)  SAX J1805.5-2031
3.19  unknown (274.35, -16.72)  Swift J181723.1-164300
3.54  unknown (274.47, -16.36)  IGR J18179-1621
3.64  unknown (271.62, -22.25)  SAX J1806.5-2215
3.70  unknown (272.59, -23.09)  V5588 Sgr
3.70  unknown (274.18, -16.22)  Swift J1816.7-1613
3.71      5.6 (270.67, -20.29)  IGR J18027-2017
3.76  unknown (278.42, -21.06)  PKS 1830-21,PKS 1830-211
3.80  unknown (271.96, -22.80)  MAXI J1807-228
3.80  unknown (274.47, -16.10)  Swift J1818.0-1607
3.85  unknown (273.22, -23.53)  PSR J1809-2332,0FGL J1809.5-2331
3.94     12.4 (275.58, -16.07)  Swift J1822.3-1606
4.00    481.6 (270.38, -20.53)  GX 9+1,1RXS J180132.3-203132
4.12      0.8 (278.93, -19.32)  MAXI J1836-194
4.39  unknown (274.39, -15.51)  IGR J18175-1530,XTE J1817-155
4.64      3.9 (274.60, -24.54)  XTE J1818-245
4.67    115.9 (277.37, -23.80)  GS 1826-238,V4634 Sgr
4.75  unknown (277.89, -16.32)  V5584 Sgr
4.84      4.2 (269.94, -22.02)  XTE J1759-220,KRL2007b 297
4.84  unknown (269.66, -21.33)  IGR J17586-2129

[Sun/Moon (RA, Dec)]
Sun :  (75.066, 22.736)
Moon:  (165.972, 11.315)
age: 7.74 day

[Latitude/Longitude]
(18.31S, 1.48E)


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

---

For more information:
 http://maxi.riken.jp/alert/novae/9737849999/9737849999.htm

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