A photometric and spectroscopic study of the new dwarf spheroidal galaxy in Hercules - Metallicity, velocities, and a clean list of RGB members

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Volume 506 / No 3 (November II 2009)

A&A, 506 3 (2009) 1147-1168

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Table 3:

Coefficients for Eq. (3).
Night	k_y	z_y	a_y	$\rho_{zk}$
14 April 2007	-0.155 $\pm$ 0.021	23.009 $\pm$ 0.031	0.016 $\pm$ 0.005	-0.92
15 April 2007	-0.142 $\pm$ 0.016	22.989 $\pm$ 0.023	0.016 $\pm$ 0.005	-0.96
Night	k_b	z_b	a_b	$\rho_{zk}$
14 April 2007	-0.240 $\pm$ 0.031	23.337 $\pm$ 0.043	0.009 $\pm$ 0.005	-0.97
15 April 2007	-0.210 $\pm$ 0.036	23.297 $\pm$ 0.050	0.009 $\pm$ 0.005	-0.96
Night	k_v	z_v	a_v	$\rho_{zk}$
14 April 2007	-0.349 $\pm$ 0.023	23.051 $\pm$ 0.034	0.050 $\pm$ 0.006	-0.98
15 April 2007	-0.353 $\pm$ 0.023	23.048 $\pm$ 0.032	0.050 $\pm$ 0.006	-0.96
Night	k_u	z_u	a_u	$\rho_{zk}$
14 April 2007	-0.582 $\pm$ 0.036	23.131 $\pm$ 0.052	0.065 $\pm$ 0.007	-0.98
15 April 2007	-0.569 $\pm$ 0.013	23.117 $\pm$ 0.021	0.065 $\pm$ 0.007	-0.96

Columns 2 to 4 list the airmass extinction coefficients, k_i, zeropoints, z_i and colour coefficients, a_i, for each filter as indicated with uncertainties $\sigma_k$ , $\sigma_z$ and $\sigma_a$ respectively. Column 5 lists the correlation coefficient between the uncertainty in extinction coefficient, $\sigma_k$ , and uncertainty in zeropoint, $\sigma_z$ . This coefficient is denoted by $\rho_{zk}$ .

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