[X-ray-star:206] Swift J1753.7-2544 in the soft state?

Wed Jan 30 14:10:24 JST 2013

The new X-ray nova Swift J1753.7-2544 is likely to be in the soft
state, suggesting to be a BHC. (H. Negoro)

=====================
MAXI transient alert
2013-01-30 01:58:12 UT
=====================

[Ground Trigger ID]
ID          :  6322874450

[Count Weighted Position]
RA,Dec: (268.429, -25.742)
Galac.: (  3.670,   0.090)
Eclip.: (268.584,  -2.310)

[Triggered Criteria]

[Highest Significance]
DPTC  : 1043546300
UT    : 2013/01/30 01:58:12
on    : 1d (High-band)
sigma : 4.2

[Observed flux]
S :    588 +-    32 mCrab
L :    578 +-    45 mCrab
M :    819 +-    54 mCrab
H :    402 +-    96 mCrab

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
0.61  unknown (268.61, -26.33)  IGR J17544-2619
0.97      4.2 (269.24, -25.11)  Swift J1756.9-2508
1.37     21.4 (267.23, -24.89)  Terzan 5,EXO 1745-248
1.38      3.6 (267.27, -26.65)  GRO J1750-27,AX J1749.1-2639
1.54    652.1 (266.98, -26.56)  GX 3+1,1RXS J174755.8-263352
1.69     21.2 (270.30, -25.74)  GRS 1758-258,1RXS J180112.6-254435
1.80   1223.8 (270.28, -25.08)  GX 5-1,1RXS J180108.7-250444
1.93      4.2 (268.38, -23.82)  SAX J1753.5-2349
2.07  unknown (267.28, -27.54)  AX J1749.1-2733
2.15      5.8 (266.82, -27.34)  IGR J17473-2721
2.17  unknown (268.56, -27.91)  AX J1754.2-2754
2.18  unknown (266.04, -26.10)  V5581 Sgr
2.47  unknown (268.26, -28.21)  V5586 Sgr
2.54  unknown (266.94, -23.59)  V5587 Sgr
2.57  unknown (267.38, -28.13)  Swift J1749.4-2807
2.77  unknown (267.41, -28.35)  IGR J17497-2821
3.01      3.6 (267.02, -28.48)  XTE J1748-288,AXJ 1748.0-2829
3.18     16.2 (265.67, -27.75)  GRS 1739-278,SAXWFC J1742.7-2744.9
3.19      7.8 (271.71, -24.58)  2S 1803-245,SAXWFC J1806.9-2434.7
3.25  unknown (270.25, -22.95)  SGR 1801-23,SGR1801-23
3.38  unknown (267.60, -29.04)  SAX J1750.8-2900
3.41  unknown (266.59, -28.73)  1E 1743.1-2843,2E 1743.1-2842
3.42     14.3 (268.06, -22.34)  XTE J1752-223
3.47    116.6 (266.76, -28.88)  SAX J1747.0-2853
3.56      9.6 (266.50, -28.87)  GRO J1744-28,SAXWFC J1744.5-2844.6
3.68     32.3 (264.57, -26.99)  SLX 1735-269,1RXS J173817.0-265940
3.71  unknown (266.26, -28.91)  CXOGCS J174502.2-285449
3.71  unknown (267.45, -29.35)  IGR J17498-2921
3.72     54.9 (266.40, -29.00)  GCTR_DIFFUSE
3.74     54.9 (266.40, -29.02)  A 1742-289
3.77      4.5 (265.17, -28.15)  IGR J17407-2808
3.85     13.8 (272.69, -26.15)  SAX J1810.8-2609,V4722 Sgr
3.87  unknown (265.18, -28.30)  SLX 1737-282,2E 1737.5-2817
3.98      4.2 (269.94, -22.02)  XTE J1759-220,b 297
4.11  unknown (266.21, -29.35)  AX J1744.8-2921,M1741-293
4.12  unknown (264.12, -27.20)  IGR J17364-2711
4.13    113.6 (266.52, -29.52)  2E 1742.9-2929,GC X-1
4.13  unknown (264.98, -28.50)  XTE J1739-285
4.34  unknown (264.64, -28.48)  GX 359+2,4U 1735-28
4.39  unknown (267.60, -21.42)  EXO 1747-214
4.40     43.2 (263.56, -26.09)  1RXS J173413.0-260527,KS 1731-260
4.47  unknown (271.86, -29.01)  V5585 Sgr
4.52     14.3 (266.86, -30.04)  1RXS J174725.6-300241,SLX 1744-300
4.55      8.7 (265.98, -29.74)  1E 1740.7-2942,SAXWFC J1743.8-2945.1
4.55  unknown (271.62, -22.25)  SAX J1806.5-2215
4.56  unknown (266.19, -29.85)  Swift J174444.9-295042
4.56  unknown (269.66, -21.33)  IGR J17586-2129
4.62  unknown (272.59, -23.09)  V5588 Sgr
4.70     22.6 (271.75, -29.41)  XTE J1807-294
4.85  unknown (267.35, -30.50)  IGR J17494-3030
4.89  unknown (273.22, -23.53)  PSR J1809-2332,0FGL J1809.5-2331
4.91  unknown (263.30, -24.14)  IGR J17331-2406
4.92  unknown (267.79, -30.63)  XTE J1751-305,SAXWFC J1751.2-3037.7
4.99  unknown (265.27, -29.88)  EXS 1737.9-2952

[Sun/Moon (RA, Dec)]
Sun :  (312.607, -17.703)
Moon:  (163.572, 1.950)
age: 18.06 day

[Latitude/Longitude]
(21.72S, 113.76E)

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

---

For more information:
 http://maxi.riken.jp/alert/novae/6322874450/6322874450.htm

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