All Tables

Table 1: Spectra obtained with the FOCES echelle spectrograph at the Calar Alto 2.2 m telescope. See text for further explanations.
Table 2: Stellar parameters and final abundances of the new program stars including 4 more extreme metal-poor reference stars. $\xi$ is the microturbulence, n denotes the number of spectral lines analyzed. $\Delta\log g$ is the maximum surface gravity error emerging from errors in temperatures, masses and parallaxes (see text).
Table 3: Abundance ratios [X/Fe] for varying collision parameter $S_{\!\!\rm H}$ compared with LTE results for a typical turnoff star, where X represents the elements Na, Mg and Al. All abundance ratios refer to abundances calculated for the spectra of G165-39.
Table 4: Kinematic results, ages and classification of metal-poor stars analyzed in this paper. Columns (3) to (7) are in km s^-1, Col. (9) is in solar masses, and Col. (10) in Gyr. Classification in terms of population membership refers to abundances ratios (left), kinematic properties (middle), and ages (right). The following notation is used: D: thin disk ([Al/Mg] > -0.1 and [Mg/Fe] < 0.25, V > -40 km s^-1, age < 10 Gyr), T: thick disk ([Al/Mg] > -0.1 and [Mg/Fe] > 0.25, -120 < V < -20 km s^-1, age > 10 Gyr), and H: halo ([Al/Mg] < -0.1, V < -50 km s^-1, age > 10 Gyr). Whenever parallax errors are >25% masses and ages have not been determined because of uncertain absolute magnitudes.
Table 5: Definition of population membership for different stellar properties.