[X-ray-star:915] GRS 1739-278 (or MAXI J1741-276)

[maxiweb at maxi.riken.jp]

MAXI detects GRS 1739-278 or a new XN MAXI J1741-276 (Negoro, H.). 

=====================
MAXI transient alert
2023-06-26 04:03:25 UT
=====================

[Ground Trigger ID]
ID          :  121849999

[Count Weighted Position]
RA,Dec: (265.500, -27.300)
Galac.: (  0.981,   1.527)
Eclip.: (265.993,  -3.923)

[Triggered Criteria]

[Highest Significance]
DPTC  : 1371787392
UT    : 2023/06/26 04:03:25
on    : 4orb (S-band)
sigma : 10.4

[Observed flux]
S :    271 +-    26 mCrab
L :    339 +-    39 mCrab
M :    320 +-    41 mCrab
H :    284 +-   110 mCrab

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
0.47     32.4 (265.67, -27.75)  GRS 1739-278,SAXWFC J1742.7-2744.9
0.88     27.7 (264.57, -26.99)  SLX 1735-269,1RXS J173817.0-265940
0.90  unknown (265.17, -28.15)  IGR J17407-2808
1.04  unknown (265.18, -28.30)  SLX 1737-282,2E 1737.5-2817
1.14  unknown (266.29, -26.40)  Swift J1745.1-2624
1.18  unknown (266.82, -27.34)  IGR J17473-2721
1.28     23.0 (264.98, -28.50)  XTE J1739-285
1.29  unknown (266.04, -26.10)  V5581 Sgr
1.40  unknown (264.64, -28.48)  GX 359+2,4U 1735-28
1.51    227.5 (266.98, -26.56)  GX 3+1,1RXS J174755.8-263352
1.60  unknown (267.28, -27.54)  AX J1749.1-2733
1.71  unknown (267.27, -26.65)  GRO J1750-27,AX J1749.1-2639
1.72  unknown (266.59, -28.73)  1E 1743.1-2843,2E 1743.1-2842
1.75  unknown (266.26, -28.91)  CXOGCS J174502.2-285449
1.79  unknown (267.02, -28.48)  XTE J1748-288,AXJ 1748.0-2829
1.80  unknown (266.50, -28.87)  GRO J1744-28,SAXWFC J1744.5-2844.6
1.86  unknown (267.38, -28.13)  Swift J1749.4-2807
1.89     87.8 (266.42, -29.01)  Galactic Center Region
1.93     88.0 (266.76, -28.88)  SAX J1747.0-2853,1A 1743-288
1.99  unknown (267.41, -28.35)  IGR J17497-2821
2.04  unknown (263.21, -27.50)  IGR J17329-2731
2.12  unknown (263.56, -26.09)  1RXS J173413.0-260527,KS 1731-260
2.15  unknown (266.21, -29.35)  KS 1741-293,AX J1744.8-2921
2.39     97.1 (266.52, -29.52)  2E 1742.9-2929,GC X-1
2.46  unknown (264.88, -29.70)  GRS 1736-297,RX J1739.4-2942
2.48  unknown (265.98, -29.74)  1E 1740.7-2942,SAXWFC J1743.8-2945.1
2.54  unknown (267.60, -29.04)  SAX J1750.8-2900
2.59  unknown (265.27, -29.88)  EXS 1737.9-2952
2.61  unknown (268.26, -28.21)  V5586 Sgr
2.62  unknown (266.19, -29.85)  Swift J174444.9-295042
2.67  unknown (267.45, -29.35)  IGR J17498-2921
2.78  unknown (268.56, -27.91)  AX J1754.2-2754
2.86    -12.4 (267.23, -24.89)  Terzan 5,EXO 1745-248
2.94  unknown (268.61, -26.33)  IGR J17544-2619
2.95  unknown (266.86, -30.00)  SLX 1744-299
2.99  unknown (266.86, -30.04)  1RXS J174725.6-300241,SLX 1744-300
3.05  unknown (268.43, -25.74)  Swift J1753.7-2544
3.11  unknown (264.80, -30.34)  XTE J1739-302,IGR J17391-3021
3.23  unknown (264.39, -30.38)  IGR J17375-3022
3.40     17.9 (263.01, -24.75)  GX 1+4,V2116 Oph
3.45     27.4 (263.95, -30.47)  Terzan 1,XB 1732-304
3.56     43.6 (263.61, -30.45)  MAXI J1735-304
3.59  unknown (267.35, -30.50)  IGR J17494-3030
3.62  unknown (262.12, -29.37)  IGR J17285-2922
3.62  unknown (266.58, -30.79)  IGR J17460-3047,IGR17460-3047
3.73  unknown (263.30, -24.14)  IGR J17331-2406
3.74     -1.8 (261.63, -28.83)  V2674 Oph,Nova Oph 2010 No. 2
3.76  unknown (265.04, -31.04)  AX J1740.1-3102,GRS 1737-31
3.89  unknown (267.79, -30.63)  XTE J1751-305,SAXWFC J1751.2-3037.7
3.93  unknown (266.94, -23.59)  V5587 Sgr
4.01  unknown (269.24, -25.11)  Swift J1756.9-2508
4.16  unknown (267.77, -30.95)  IGR J17511-3057
4.33  unknown (263.38, -31.22)  GRS 1730-312,KS 1730-312
4.34  unknown (268.38, -23.82)  SAX J1753.5-2349
4.43     24.9 (267.69, -31.29)  GRS 1747-312,SAXWFC J1750.8-3116.5
4.57  unknown (270.30, -25.74)  GRS 1758-258,1RXS J180112.6-254435
4.72     65.8 (261.89, -30.80)  Terzan 2,4U 1724-307,ESO 454-SC 029
4.83   1035.1 (270.28, -25.08)  GX 5-1,1RXS J180108.7-250444
4.88  unknown (268.10, -31.63)  SAX J1752.3-3138,INTREF 865

[Sun/Moon (RA, Dec)]
Sun :  (94.372, 23.385)
Moon:  (183.042, 1.395)
age: 7.70 day

[Longitude/Latitude]
(106.62E, 25.81N)


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/0121849999/0121849999.htm

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