Radial velocities and metallicities from infrared Ca ii triplet spectroscopy of open clusters - II. Berkeley 23, King 1, NGC 559, NGC 6603, and NGC 7245

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Volume 578 (June 2015)

A&A, 578 (2015) A27

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Table 3

Mean cluster metallicities and radial velocities and their standard deviation.

Cluster	[Fe/H]_V	[Fe/H]_I	[Fe/H]_K	⟨[Fe/H]⟩^a	⟨ V_r ⟩ ^b	#
					(km s^-1)

Be 23	−0.42 ± 0.13		−0.43 ± 0.13	−0.42 ± 0.13	48.6 ± 3.4	8^c
King 1	+0.13 ± 0.51	+0.00 ± 0.52	−0.16 ± 0.53	−0.01 ± 0.52	−38.4 ± 11.6	10^d
NGC 559	−0.22 ± 0.14	−0.18 ± 0.14	−0.35 ± 0.14	−0.25 ± 0.14	−58.4 ± 6.8	15
NGC 6603	+0.42 ± 0.13	+0.53 ± 0.14	+0.33 ± 0.17	+0.43 ± 0.15	26.0 ± 4.3	7
NGC 7245	−0.17 ± 0.14	−0.14 ± 0.17	−0.15 ± 0.24	−0.15 ± 0.18	−65.3 ± 3.2	5

Notes. The last column lists the number of member stars.

^(a)

Mean of the values obtained in each bandpass. The adopted uncertainty is the mean of the uncertainties of the metallicity determination in each bandpass.

^(b)

Mean and standard deviation of the radial velocities of the stars selected as cluster members.

^(c)

Seven red giant and one main sequence stars, the latest not used in the metallicity determination.

^(d)

The number of stars used in our analysis. However, we cannot ensure that we have sampled real cluster members for the reasons described in Sect. 4.2.

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