[X-ray-star:901] Terzan 1 ?

maxiweb at maxi.riken.jp maxiweb at maxi.riken.jp
Tue Mar 21 17:57:33 JST 2023


A possible outburst from Terzan 1 or a new transient is detected (H.
Negoro).

=====================
MAXI transient alert
2023-03-20 16:50:27 UT
=====================

[Ground Trigger ID]
ID          :  23574190

[Count Weighted Position]
RA,Dec: (263.275, -30.270)
Galac.: (357.427,   1.583)
Eclip.: (264.152,  -6.967)

[Triggered Criteria]
S  :  4d
M  :  4d

[Highest Significance]
DPTC  : 1363366220
UT    : 2023/03/20 16:50:27
on    : 4d (S-band)
sigma : -4.6

[Observed flux]
S :    -60 +-    13 mCrab
L :    -89 +-    16 mCrab
M :    -76 +-    22 mCrab
H :   -109 +-    70 mCrab

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
0.34     45.8 (263.61, -30.45)  MAXI J1735-304
0.61     43.2 (263.95, -30.47)  Terzan 1,XB 1732-304
0.95  unknown (263.38, -31.22)  GRS 1730-312,KS 1730-312
0.97  unknown (264.39, -30.38)  IGR J17375-3022
1.31     87.8 (261.89, -30.80)  Terzan 2,4U 1724-307,ESO 454-SC 029
1.32  unknown (264.80, -30.34)  XTE J1739-302,IGR J17391-3021
1.35  unknown (262.12, -29.37)  IGR J17285-2922
1.50  unknown (264.88, -29.70)  GRS 1736-297,RX J1739.4-2942
1.70  unknown (265.04, -31.04)  AX J1740.1-3102,GRS 1737-31
1.77  unknown (265.27, -29.88)  EXS 1737.9-2952
2.03     29.2 (261.63, -28.83)  V2674 Oph,Nova Oph 2010 No. 2
2.15  unknown (264.64, -28.48)  GX 359+2,4U 1735-28
2.31     24.5 (264.98, -28.50)  XTE J1739-285
2.40  unknown (265.98, -29.74)  1E 1740.7-2942,SAXWFC J1743.8-2945.1
2.56  unknown (266.19, -29.85)  Swift J174444.9-295042
2.57  unknown (265.18, -28.30)  SLX 1737-282,2E 1737.5-2817
2.69  unknown (265.17, -28.15)  IGR J17407-2808
2.71  unknown (263.84, -32.94)  IGR J17354-3255
2.71  unknown (266.21, -29.35)  KS 1741-293,AX J1744.8-2921
2.77  unknown (263.21, -27.50)  IGR J17329-2731
2.89  unknown (266.58, -30.79)  IGR J17460-3047,IGR17460-3047
2.92     52.9 (266.52, -29.52)  2E 1742.9-2929,GC X-1
2.93  unknown (266.26, -28.91)  CXOGCS J174502.2-285449
2.97  unknown (260.02, -31.28)  IGR J17200-3116
3.01     63.7 (266.42, -29.01)  Galactic Center Region
3.10  unknown (266.86, -30.04)  1RXS J174725.6-300241,SLX 1744-300
3.11  unknown (266.86, -30.00)  SLX 1744-299
3.12     -8.6 (263.35, -33.39)  H 1730-333,Rapid Burster
3.14  unknown (261.36, -32.95)  IGR J17254-3257
3.14  unknown (266.50, -28.87)  GRO J1744-28,SAXWFC J1744.5-2844.6
3.18  unknown (260.00, -31.75)  XTE J1720-318,V1228 Sco
3.23  unknown (259.82, -29.07)  XTE J1719-291
3.27  unknown (266.59, -28.73)  1E 1743.1-2843,2E 1743.1-2842
3.28     11.1 (265.67, -27.75)  GRS 1739-278,SAXWFC J1742.7-2744.9
3.33     67.9 (266.76, -28.88)  SAX J1747.0-2853,1A 1743-288
3.43    148.9 (266.56, -32.23)  H 1743-322,XTE J17464-3213
3.47     37.4 (264.57, -26.99)  SLX 1735-269,1RXS J173817.0-265940
3.52  unknown (267.35, -30.50)  IGR J17494-3030
3.57     43.3 (262.99, -33.83)  GX 354-0,4U 1728-34,Slow Burster
3.59     15.6 (259.81, -28.33)  IGR J17191-2821
3.61  unknown (259.70, -32.18)  1H 1715-321
3.72  unknown (267.02, -28.48)  XTE J1748-288,AXJ 1748.0-2829
3.74  unknown (267.45, -29.35)  IGR J17498-2921
3.91  unknown (267.79, -30.63)  XTE J1751-305,SAXWFC J1751.2-3037.7
3.93     25.4 (267.69, -31.29)  GRS 1747-312,SAXWFC J1750.8-3116.5
3.93  unknown (267.77, -30.95)  IGR J17511-3057
3.95  unknown (267.60, -29.04)  SAX J1750.8-2900
4.08  unknown (267.41, -28.35)  IGR J17497-2821
4.17  unknown (267.38, -28.13)  Swift J1749.4-2807
4.19  unknown (263.56, -26.09)  1RXS J173413.0-260527,KS 1731-260
4.27  unknown (266.82, -27.34)  IGR J17473-2721
4.35  unknown (268.10, -31.63)  SAX J1752.3-3138,INTREF 865
4.42  unknown (262.50, -34.64)  SWIFT J1729.9-3437
4.44  unknown (267.28, -27.54)  AX J1749.1-2733
4.61    150.1 (267.45, -33.20)  SLX 1746-331,RX J1749.8-3312
4.69  unknown (266.29, -26.40)  Swift J1745.1-2624
4.82  unknown (268.26, -28.21)  V5586 Sgr
4.83  unknown (266.04, -26.10)  V5581 Sgr
4.94    160.7 (266.98, -26.56)  GX 3+1,1RXS J174755.8-263352

[Sun/Moon (RA, Dec)]
Sun :  (359.542, -0.198)
Moon:  (348.158, -9.303)
age: 28.35 day

[Latitude/Longitude]
(31.01S, 175.21W)


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

---

For more information:
 http://maxi.riken.jp/alert/novae/0023574190/0023574190.htm

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




More information about the X-ray-star mailing list