[X-ray-star:937] GX 339-4 in the soft state

[maxiweb at maxi.riken.jp]

GX 339-4 is undergoing a hard-to-soft state transition (H. Negoro).

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MAXI transient alert
2024-01-28 14:55:50 UT
=====================

[Ground Trigger ID]
ID          :  337849999

[Count Weighted Position]
RA,Dec: (255.705, -48.790)
Galac.: (338.944,  -4.335)
Eclip.: (259.585, -25.866)

[Triggered Criteria]

[Highest Significance]
DPTC  : 1390488922
UT    : 2024/01/28 14:55:50
on    : 4orb (S-band)
sigma : 1.4

[Observed flux]
S :     27 +-    19 mCrab
L :    158 +-    28 mCrab
M :    -12 +-    33 mCrab
H :     -9 +-   107 mCrab

nearby(r<5deg) object
=====================
dist  flux  (RA, Dec)        name
[deg][mCrab]  [deg]
=====================
0.00    192.5 (255.71, -48.79)  GX 339-4,V821 Ara
2.39     -5.2 (252.50, -49.96)  XTE J1650-500,GHJ2008 3
2.62     10.4 (255.24, -46.19)  XTE J1701-462
3.88  unknown (253.09, -45.34)  XTE J1652-453
3.94  unknown (251.79, -45.87)  CXOU J164710.2-455216
4.27  unknown (256.12, -44.53)  XTE J1704-445
4.30    447.3 (251.45, -45.61)  GX 340+0,1RXS J164547.8-453642
4.33  unknown (249.26, -49.86)  XTE J1637-498
4.39  unknown (251.99, -45.20)  IGR J16479-4514
4.50  unknown (249.78, -46.71)  IGR J16393-4643,AX J1639.0-4642
4.56  unknown (249.31, -50.72)  IGR J16374-5043
4.60  unknown (251.65, -45.12)  IGR J16465-4507
4.65  unknown (248.97, -47.59)  SGR 1627-41,SGR1627-41
4.69  unknown (248.98, -47.43)  IGR J16358-4726,IGR16358-4726
4.80    267.3 (257.23, -44.10)  4U 1705-440,SAXWFC J1708.9-4406.9
4.82  unknown (250.46, -45.54)  IGR J16418-4532

[Sun/Moon (RA, Dec)]
Sun :  (310.256, -18.313)
Moon:  (162.183, 10.938)
age: 17.44 day

[Longitude/Latitude]
(81.24E, 38.67N)


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/0337849999/0337849999.htm

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