Study of Hubble Space Telescope counterparts to Chandra X-ray sources in the globular cluster M 71

R. H. H. Huang; W. Becker; P. D. Edmonds; R. F. Elsner; C. O. Heinke; B. C. Hsieh

doi:10.1051/0004-6361/200811245

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Volume 513 (April 2010)

A&A, 513 (2010) A16

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Table 1:

Spectral fits of the X-ray sources with source counts $C_{\rm {0.3{-}8.0~keV}} \geq 50$ .
X-ray Source	Model	Grouping^a	$\Gamma$ /kT	C-statistic/bins	$f_{\rm0.3-8.0}(f_{\rm0.5-2.5})$ ^b
s02	PL	8	3.08 $\pm$ 0.3	12.11/9	1.49(0.74)
	TB	8	0.62 $\pm$ 0.1	10.99/9	1.26(0.82)
s05	PL	30	1.55 $\pm$ 0.1	8.20/9	5.67(2.25)
	TB	30	$\rm 9.96^{+9.2}_{-3.0}$	10.33/9	5.48(2.23)
	BB	30	$\rm0.69^{+0.04}_{-0.03}$	59.72/9	2.63(0.91)
s08	PL	5	1.70 $\pm$ 0.5	2.56/6	0.74(0.32)
	TB	5	0.53	20.18/6	0.67(0.45)
s15	PL	5	2.57 $\pm$ 0.3	9.34/11	1.18(0.63)
	TB	5	$\rm 1.31^{+0.5}_{-0.3}$	8.23/11	0.84(0.57)
s19	PL	5	2.61 $\pm$ 0.4	1.19/9	1.14(0.60)
	TB	5	$\rm 1.23^{+0.7}_{-0.3}$	2.77/9	0.80(0.55)
s20	PL	8	1.92 $\pm$ 0.4	9.52/9	1.71(0.83)
	TB	8	$\rm 1.90^{+2.1}_{-0.7}$	8.58/9	1.40(0.89)
	BB	8	$\rm0.35^{+0.04}_{-0.03}$	0.84/7	0.83(0.72)
s29	PL	5	1.29 $\pm$ 0.4	4.94/8	1.12(0.36)

Notes. ^(a) Minimum number of counts used to group the spectral data for fitting in XSPEC. ^(b) Unabsorbed X-ray flux in units of $10^{-14}~{\rm erg~s^{-1}~cm^{-2}}$ ; energy bands are 0.3-8.0 (0.5-2.5) keV.

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