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Table 1

Log of X-ray observations of 2XMM J185114.3−000004 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 00524542000 2012-06-17 15:43:04 2012-06-17 17:58:19 1201 – – (7.8 ± 0.8) × 10-10 26.1/24
Swift/XRT WT 00524542000 2012-06-17 15:49:58 2012-06-17 17:14:58 17 b b (3.4 ± 0.7) × 10-10 – –
Swift/XRT PC 00524542000 2012-06-17 15:50:11 2012-06-17 17:56:46 4305 – 45.4/42
Swift/XRT PC 00524542001 2012-06-17 18:51:27 2012-06-18 01:39:58 5366 b b (5.4 ± 0.2) × 10-13 – –
Swift/XRT PC 00524542002 2012-06-18 19:06:54 2012-06-18 19:33:56 1610 b b < 1.1 × 10-12 – 3σ UL
Swift/XRT PC 00524542003 2012-06-18 22:09:31 2012-06-19 01:53:44 3831 b b < 1.3 × 10-12 – 3σ UL
Swift/XRT PC 00524542004 2012-06-19 17:20:22 2012-06-19 17:36:57 985 b b < 1.6 × 10-12 – 3σ UL
Swift/XRT PC 00524542005 2012-06-21 03:09:28 2012-06-21 03:26:59 1020 b b < 2.7 × 10-12 – 3σ UL
Swift/XRT PC 00524542007 2012-06-23 04:47:40 2012-06-23 04:56:55 554 b b < 3.2 × 10-12 – 3σ UL
Swift/XRT PC 00524542008 2012-06-24 03:48:15 2012-06-24 23:09:56 1158 b b < 1.8 × 10-12 – 3σ UL
Swift/XRT PC 00524542009 2012-06-25 08:05:54 2012-06-25 22:38:56 1131 b b (2.6 ± 0.8) × 10-12 – –
Swift/XRT PC 00524542010 2012-06-26 00:10:27 2012-06-26 00:25:55 923 b b < 2.5 × 10-12 – 3σ UL
Swift/XRT PC 00524542011 2012-06-28 10:00:53 2012-06-28 10:17:56 1000 b b < 2.7 × 10-12 – 3σ UL
Swift/XRT PC 00524542012 2012-06-29 06:55:10 2012-06-29 07:11:56 995 b b < 1.5 < × 10-12 – 3σ UL
Swift/XRT PC 00524542013 2012-06-30 02:22:00 2012-06-30 02:38:55 1003 b b < 1.8 < × 10-12 – 3σ UL
Swift/XRT PC 00524542014 2012-07-01 03:55:57 2012-07-01 03:59:55 228 b b < 6.7 < × 10-12 – 3σ UL
Swift/XRT PC 00524542015 2012-07-02 03:48:53 2012-07-02 04:01:56 757 b b < 2.4 < × 10-12 – 3σ UL
Swift/XRT PC 00524542016 2012-07-03 01:04:48 2012-07-03 02:26:54 1005 b b < 1.8 < × 10-12 – 3σ UL
Swift/XRT PC 00524542017 2012-07-04 21:46:20 2012-07-04 22:01:55 923 b b < 1.9 < × 10-12 – 3σ UL
Swift/XRT PC 00032512001 2012-08-08 01:19:37 2012-08-08 19:08:56 2745 b b (5.1 ± 0.7) × 10-12 – –
Swift/XRT PC 00032512002 2012-08-11 10:43:32 2012-08-11 12:31:55 1464 b b < 1.9 × 10-12 – 3σ UL
Swift/XRT PC 00032512004 2012-08-19 03:11:15 2012-08-19 06:31:55 3879 b b < 1.7 × 10-12 – 3σ UL
Swift/XRT PC 00032512005 2012-08-31 15:02:03 2012-08-31 18:37:56 4719 b b (3.4 ± 0.4) × 10-12 – –
Swift/XRT PCc 00044565001 2012-11-20 20:52:24 2012-11-20 21:00:56 506 b b < 1.8 × 10-12 – 3σ UL
XMM Epic-pnc 0017740401 2003-10-05 00:53:54 2003-10-05 08:57:14 27 670 11 ± 5 1.6 ± 0.9 – 45.2/42e
XMM Epic-MOSc 0017740401 2003-10-05 00:53:54 2003-10-05 08:57:14 27 670 13 2.0 – 15.2/19e
XMM Epic-pnc 0017740501 2003-10-20 23:36:20 2003-10-21 07:56:20 28 667 – 9.6/14e
XMM Epic-MOSc 0017740501 2003-10-20 23:36:20 2003-10-21 07:56:20 28 667 10 1.2 – 8.4/7e
XMM Epic-pnc 0671510101 2012-03-18 09:44:36 2012-03-19 02:48:13 60 084 d d < 4 × 10-15 – 3σ UL

Notes. The adopted spectral model for the fits is an absorbed power law.

(a)

Observed.

(b)

Adopting the same spectral parameters as in observation 0017740401 (pn).

(c)

Serendipitous observations.

(d)

Adopting the same spectral parameters as in observation 0017740501 (pn).

(e)

Cash statistics has been used during the fit.

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