AX J1910.7+0917 and three newly discovered INTEGRAL sources

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Table 1

Observation log of AX J1910.7+0917.

OBS ID	Instr	Date^a	Exp^b	N _H	Γ	F _obs ^c	χ2_red/d.o.f.
			(ks)	(10²² cm^-2)		(erg/cm²/s)	(C-stat/d.o.f.)

ASCA
50005000	GIS2+GIS3	1993-04-24	95		1.4 ± 0.5		0.4/53
13000000^d	GIS2	1993-05-03	2.3	4.8 (fixed)	1.4 (fixed)	<4.2	–
	GIS3	1993-05-03	2.3	4.8 (fixed)	1.4 (fixed)	<4.9	–
13000010^d	GIS2	1993-05-03	2.3	4.8 (fixed)	1.4 (fixed)	<1.1	–
	GIS3	1993-05-03	2.3	4.8 (fixed)	1.4 (fixed)	<1.6	–
13000030^d	GIS3	1993-05-03	1.4	4.8 (fixed)	1.4 (fixed)	<2.1	–
	GIS3	1993-05-03	1.4	4.8 (fixed)	1.4 (fixed)	<3.1	–
50005010^d	GIS2	1993-10-16	12	4.8 (fixed)	1.4 (fixed)	<0.6	–
	GIS3	1993-10-16	12	4.8 (fixed)	1.4 (fixed)	<0.6	–
50005020^d	GIS2	1993-10-17	20	4.8 (fixed)	1.4 (fixed)	<1.1	–
	GIS3	1993-10-17	20	4.8 (fixed)	1.4 (fixed)	<1.4	–
10020000	GIS2+GIS3	1993-11-03	26		2.3 ± 0.5		(146.1/157)
10020010^d	GIS2	1993-11-03	19	4.8 (fixed)	1.4 (fixed)	<2.1	–
	GIS3	1993-11-03	19	4.8 (fixed)	1.4 (fixed)	<2.3	–
57005050	GIS2+GIS3	1999-04-27	23		1.6 ± 0.8		(70.7/59)
XMM-Newton
0084100401	Epic-pn	2004-04-03	14.0		1.4 ± 0.1		1.1/147
0084100501^e	Epic-pn	2004-04-05	14.7	5.0 ± 0.3	1.28 ± 0.08		0.9/168
Chandra
9615^f	ACIS-S	2008-05-31	1.7	–	–	<0.4	–

Notes.

^(a)

Format is YYYY-MM-DD;

^(b)

Exp indicates the total exposure time of each observation;

^(c)

observed flux in the 1−10 keV energy band in units of 10^-12;

^(d)

90% c.l. upper limit;

^(e)

this fit includes also a Gaussian line at ~6.4 keV, see text for details;

^(f)

68% c.l. upper limit.

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