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Table 2

Log of X-ray observations of IGR J17407−2808 and spectral fit results.

Instrument ObsID Start time End time Exposure NH Γ χ2/d.o.f.
(UT) (UT) (s) (× 1022 cm-2) (erg cm-2 s-1) (erg cm-2 s-1)
Swift/BAT evt 00505516000 2011-10-15 01:13:06 2011-10-15 01:28:11 905 – – (4.6 ± 0.9) × 10-10 49.6/24
Swift/BAT evt (peak1) 00505516000 2011-10-15 01:12:26 2011-10-15 01:14:06 100 – – (2.1 ± 0.2) × 10-9 27.8/23
Swift/BAT evt (peak2) 00505516000 2011-10-15 01:27:04 2011-10-15 01:28:49 105 – – (2.3 ± 0.3) × 10-9 32.8/24
Swift/XRT PC 00505516000 2011-10-15 01:15:05 2011-10-15 03:03:32 772 b (6.8 ± 0.9) × 10-11 – 68.9/68c
Swift/XRT PC 00036122001 2011-10-15 19:16:28 2011-10-15 20:27:37 983 d d < 2.1 × 10-12 – 3σ UL
Swift/XRT PC 00036122002 2011-10-17 01:17:25 2011-10-17 01:34:01 988 d d < 2.1 × 10-12 – 3σ UL
Swift/XRT PC 00036122003 2011-10-17 21:57:29 2011-10-17 22:14:05 980 d d <2.7 × 10-12 – 3σ UL
Swift/XRT PC 00036122004 2011-10-18 12:36:46 2011-10-18 12:53:57 1018 d d < 2.9 × 10-12 – 3σ UL
Swift/XRT PC 00036122006 2011-10-20 12:47:59 2011-10-20 12:48:27 28 d d < 4.0 × 10-11 – 3σ UL
Swift/XRT PC 00036122007 2011-10-21 14:26:20 2011-10-21 14:41:56 933 d d < 1.6 × 10-12 – 3σ UL
Swift/XRT PCe 00032370001 2012-06-30 03:34:12 2012-06-30 03:43:56 584 d d < 4.5 × 10-12 – 3σ UL
Swift/XRT PCe 00032370003 2012-07-12 11:09:06 2012-07-12 11:17:55 522 d d < 4.6 × 10-12 – 3σ UL
Swift/XRT PCe 00032370004 2012-08-28 07:21:39 2012-08-28 07:29:56 484 d d < 2.3 × 10-12 – 3σ UL
Swift/XRT PCf All 3σ UL 2011-10-15 19:16:28 2012-08-28 07:29:56 6519 d d < 1.1 × 10-12 – 3σ UL
XMM Epic-pne 0764191301 2016-03-06 09:21:41 2016-03-06 19:34:01 30 678 – 29.6/19g
XMM Epic-MOSe 0764191301 2016-03-06 08:58:52 2016-03-06 19:38:06 35 923 – – – – –

Notes. A power-law was used to describe the BAT data, while an absorption component was included in the case of the XRT and XMM-Newton data.

(a)

Observed.

(b)

NH< 5.1 × 1022 cm-2 3σ c.l.

(c)

Cash statistics.

(d)

Adopting the same spectral parameters as in observation 00505516000.

(e)

Serendipitous observations.

(f)

Combination of all data after T+ 104 s (from 00036122001 to 00032370004).

(g)

Simultaneous EPIC-pn and MOS1 fit.

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