Sixteen years of X-ray monitoring of Sagittarius A*: Evidence for a decay of the faint flaring rate from 2013 August, 13 months before a rise in the bright flaring rate

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Volume 604 (August 2017)

A&A, 604 (2017) A85

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Table A.3

Observation log of public Swift observations and the X-ray flares detected in this work.

Observations						Flares

										Mean

First	Last	Number	Total exposure	Non-flaring level	η _obs ^a	#	Start	Stop	Duration^b	Count rate^c	Flux^d
(UT)	(UT)		(ks)	(count s^-1)	(%)	(UT)	(UT)	(s)	(count s^-1)	(10^-12 erg s^-1 cm^-2)

2006-02-24 22:55:12	2006-11-02 14:22:34	198	261.7	0.021 ± 0.002	24.6	1	2006-07-13 21:57:36	2006-07-13 23:39:50	924	0.031 ± 0.007	15.3
2007-02-16 21:38:52	2007-11-02 13:52:19	163	174.6	0.025 ± 0.004	24.6	2	2007-03-03 00:38:21	2007-03-03 02:34:56	2018	0.012 ± 0.004	9.21
2008-02-19 23:02:24	2008-10-30 09:14:24	161	199.3	0.024 ± 0.003	24.6	3	2008-03-25 20:24:00	2008-03-25 23:36:58	707	0.056 ± 0.011	20.8
						4	2008-05-01 14:15:22	2008-05-01 20:39:50	1056	0.029 ± 0.007	8.66
						5	2008-10-17 17:15:22	2008-10-17 22:09:07	1369	0.036 ± 0.007	11.9
2009-06-04 07:23:31	2009-11-01 21:37:26	36	34.64	0.028 ± 0.009	24.6		.....................	.....................	......	...............	......
2010-04-07 01:10:34	2010-10-31 10:10:34	62	70.33	0.030 ± 0.006	24.6	6	2010-06-12 10:23:31	2010-06-12 12:07:12	1081	0.127 ± 0.012	49.3
2011-02-04 16:53:46	2011-11-02 15:38:53	81	76.78	0.025 ± 0.006	24.6		.....................	.....................	......	...............	......
2012-02-05 20:12:29	2012-10-31 23:21:07	79	73.95	0.020 ± 0.005	24.6		.....................	.....................	......	...............	......
2013-02-03 22:26:24	2013-10-31 01:17:46	191	185.4	0.145 ± 0.009	20.0^e		.....................	.....................	......	...............	......
2014-02-03 18:57:36	2014-11-02 12:56:09	236	231.4	0.056 ± 0.007	24.3	7	2014-09-09 11:41:17	2014-09-09 11:58:34	975	0.128 ± 0.013	59.4
2015-02-03 00:18:43	2015-11-02 15:14:24	231	211.1	0.033 ± 0.004	24.6	8	2015-11-02 14:58:34	2015-11-02 15:14:24	993	0.074 ± 0.009	22.3

Notes.

^(a)

The average flare detection efficiency above the corresponding non-flaring level.

^(b)

The flare duration corresponds to the corresponding observing time.

^(c)

The flare mean count rates are computed after subtraction of the non-flaring level.

^(d)

Mean unabsorbed flux between 2 and 10 keV determined for N_H = 14.3 × 10²² cm^-2 and Γ = 2.

^(e)

Mean flare detection efficiency. Owing to the decay phase of the Galactic center magnetar, the average flare detection efficiency increases during this campaign: 16.2, 17.9, 18.5, 21.7, 22.5, and 23.3% during 2013 April 4–May 11, May 12–17, May 18–29, May 30–June 28, June 29–September 7 and September 8–October 31, respectively.

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