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Table 2

Swift observations log of IGR J18179-1621.

OBSa Startb Stopb Exp Γ F obs d /d.o.f.
(day) (day) (ks) (C-stat/d.o.f.)
01 0.85 0.92 2.0 0.1 ± 0.5 2.9 0.6/31
02 1.64 1.67 1.9 2.8 1.0/25
04 2.92 3.00 2.3 2.6 1.0/23
05 3.32 3.47 2.2 2.8 0.8/26
06 4.52 4.74 2.2 2.0 1.2/37
07 6.12 6.40 1.9 1.6 1.2/25
08 7.33 7.82 2.2 1.3 0.9/35
09 9.22 10.23 2.2 1.0 1.0/37
10 11.21 11.45 1.3 0.87 1.1/19
12 13.03 13.70 1.5 0.54 0.9/14
13 17.63 17.64 1.3 0.19 (19.7/22)
14 18.30 18.31 1.1 0.23 (14.5/17)
15–17e 19.31 21.79 3.1 0.08 (28.1/29)

Notes. All data were fit with a simple absorbed power-law model

(a)

Only the last two digits of the observation ID.000322930** are shown.

(b)

Start and stop times of the observations are from MJD 55 986, 29 Feb. 2012.

(c)

The absorption column density is in units of 1022 cm-2.

(d)

The absorbed X-ray flux is in units of 10-10 erg cm-2 s-1.

(e)

Owing to the relatively low statistics, the three observations 15, 16, and 17 were merged to allow for a meaningful spectral extraction.

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