CV1 in the globular cluster M 22: confirming its nature through X-ray observations and optical spectroscopy

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Volume 551 (March 2013)

A&A, 551 (2013) A60

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Table 1

Chandra X-ray sources in the direction of M 22 labelled from the centre of the cluster (1) outwards.

Src	Src	RA	Dec	Error	cnt	Flux
Ch.	XMM	^h ^m ^s	° ′ ″	″		(×10^-14)

1	–	18^h36^m24.21^s	−23°54′10.13″	0.45	10	0.79 ± 0.70
2	36	18^h36^m24.71^s	−23°54′35.61″	0.41	231	18.87 ± 3.50
3	–	18^h36^m25.44^s	−23°54′51.62″	0.48	7	0.52 ± 0.17
4	–	18^h36^m27.20^s	−23°54′25.97″	0.43	27	2.13 ± 1.34
5	33	18^h36^m21.70^s	−23°53′34.99″	0.48	5	0.28 ± 0.18
6	39	18^h36^m24.86^s	−23°55′14.92″	0.42	56	5.00 ± 2.08
7	–	18^h36^m28.26^s	−23°55′35.25″	0.48	11	0.66 ± 0.47
8	–	18^h36^m32.88^s	−23°53′05.35″	0.44	19	1.12 ± 0.71
9	32	18^h36^m18.40^s	−23°52′17.19″	0.42	35	2.75 ± 1.31
10	23	18^h36^m28.29^s	−23°56′24.64″	0.45	29	2.48 ± 1.33
11	–	18^h36^m13.84^s	−23°54′45.46″	0.53	6	0.39 ± 0.30
12	–	18^h36^m22.33^s	−23°51′40.08″	0.46	8	0.89 ± 0.84
13	55	18^h36^m14.44^s	−23°55′38.86″	0.46	24	1.87 ± 1.01
14	–	18^h36^m14.37^s	−23°52′41.76″	0.48	8	1.01 ± 0.75
15	–	18^h36^m24.10^s	−23°57′11.20″	0.66	7	0.37 ± 0.22
16	37	18^h36^m38.38^s	−23°54′47.42″	0.46	23	1.86 ± 1.16
17	–	18^h36^m33.80^s	−23°51′37.50″	0.45	14	0.80 ± 0.38
18	34	18^h36^m39.06^s	−23°53′46.63″	0.44	32	1.93 ± 0.51
19	–	18^h36^m12.17^s	−23°56′23.69″	0.64	7	0.39 ± 0.30
20	20	18^h36^m15.44^s	−23°50′56.80″	0.48	9	1.40 ± 0.99
21	–	18^h36^m30.14^s	−23°49′58.78″	0.53	6	0.66 ± 0.26
22	73	18^h36^m21.04^s	−23°49′19.50″	0.56	6	0.48 ± 0.33
23	71	18^h36^m25.50^s	−23°59′09.31″	0.75	16	1.15 ± 0.82
24	–	18^h36^m42.94^s	−23°56′58.94″	0.61	18	1.67 ± 1.03
25	8	18^h36^m34.63^s	−23°49′29.11″	0.46	25	2.21 ± 1.29
26	19	18^h36^m5.64^s	−23°50′50.27″	0.62	8	2.23 ± 2.03
27	44	18^h36^m18.31^s	−24°00′55.88″	0.70	48	4.98 ± 2.20
28	16	18^h36^m15.15^s	−23°46′13.70″	0.69	21	2.18 ± 1.04
29	17	18^h36^m10.45^s	−23°46′27.38″	0.63	30	3.24 ± 0.79
30	–	18^h37^m0.63^s	−23°56′12.81″	0.93	28	2.44 ± 1.23
31	–	18^h36^m59.94^s	−23°51′29.11″	0.74	39	4.76 ± 2.74
32	–	18^h36^m56.04^s	−23°48′44.82″	1.06	14	1.75 ± 0.77
33	29	18^h36^m27.68^s	−23°45′06.61″	0.57	64	6.46 ± 2.26
34	25	18^h37^m0.56^s	−23°58′29.70″	1.28	21	1.93 ± 1.12
35	–	18^h36^m56.82^s	−23°48′08.59″	1.25	12	1.23 ± 1.12
36	–	18^h36^m30.56^s	−23°44′27.38″	1.03	21	1.81 ± 1.11
37	–	18^h36^m56.20^s	−23°47′27.39″	1.49	10	0.70 ± 0.48
38	43	18^h36^m59.48^s	−24°00′28.59″	1.23	34	5.14 ± 1.68
39	–	18^h37^m8.63^s	−23°50′27.36″	1.15	45	4.50 ± 2.28

Notes.For X-ray sources detected using XMM-Newton the source number from Webb et al. (2004) is also given. Right ascension, declination, and the 1σ positional error are provided, along with the counts detected (cnt) and the source flux from ACIS-Extract (in erg cm^-2 s^-1).

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