Appendix A: Tables

The tables listed in this appendix contain the following columns:

$\bullet$ Table 3: CORAVEL data

$\triangleright$ Hen and GCGSS are the Henize and Stephenson numbers, respectively, as listed in the General Catalogue of Galactic S stars (Stephenson 1984);
$\triangleright$ Tc indicates whether the star is technetium-rich (y) or technetium-poor (n) as derived in Paper I;
$\triangleright$ $N_{\rm C}$ is the number of CORAVEL radial-velocity measurements;
$\triangleright$ $\Delta T$ stands for the time span (in days) of the observations;
$\triangleright$ $V_{\rm r}$ (km s^-1) is the mean heliocentric radial velocity and $\sigma(V_{\rm r})$ (km s^-1) its standard deviation;
$\triangleright$ $\overline{\epsilon}_1$ (km s^-1) gives the average error on one measurement;
$\triangleright$ Sb (km s^-1) and PR are the reduced width and the depth of the CORAVEL cross-correlation dip, respectively;
$\triangleright$ $V_{\rm ran}$ (km s^-1) indicates the range of the radial velocity measurements.

$\bullet$ Table 4: Geneva photometric data

$\triangleright$ $N_{\rm p}$ is the number of measurements in the Geneva photometric system;
$\triangleright$ V and V₀ are the reddened and dereddened visual apparent magnitude;
$\triangleright$ U-B, B-V and (U-B)₀, (B-V)₀ are the reddened and dereddened colour indices, respectively;
$\triangleright$ m indicates the method chosen for dereddening the photometry, as described in Sect. 3.3 [1: E_B-V is taken from Burstein & Heiles (1982); 2: A_V(r) is taken from Neckel & Klare (1980); 3: A_V(r) is taken from Arenou et al. (1992)];
$\triangleright$ n_U is the number of measurements fainter than U=16.5; they were all discarded;
$\triangleright$ $\sigma_{\rm r}(U)$, $\sigma_{\rm r}(B)$ and $\sigma_{\rm r}(V)$ stand for the reduced standard deviation of the U, B and V magnitudes.

$\bullet$ Table 5: Infrared photometric data

$\triangleright$ the first 4 columns (after the Henize number) list the JHKL photometry taken at SAAO (Sect. 4);
$\triangleright$ (V-K)₀ is the dereddened colour index;
$\triangleright$ the K - [12] and K-[25] indices, as described in Sect. 6, come next;
$\triangleright$ $m_{\rm bol}$ is the apparent bolometric magnitude obtained by integrating the spectral energy distribution in the UBVJHKL bands (Sect. 5);
$\triangleright$ $m_{{\rm bol},V}$ is a less accurate estimate of the apparent bolometric magnitude derived by applying an appropriate bolometric correction to the V magnitude (see Sect. 5).

$\bullet$ Table 6: Spectroscopic data and clustering results

$\triangleright$ $I_{\rm ZrO}$, $I_{\rm TiO}$, $I_{\rm NaD}$ and $I_{\rm LaO}$ are the band strength indices as defined in Sect. 7.2;
$\triangleright$ S/N stands for the signal-to-noise ratio of the low-resolution spectra used to derive the band strength indices (Sect. 7);
$\triangleright$ the weight assigned to each Henize star in order to correct for the unequal galactic longitude coverage at different galactic latitudes is listed in Col. w (see Paper III);
$\triangleright$ l and b stand for the galactic longitudes and latitudes, respectively;
$\triangleright$ C₂ and C₆ are the group assignments derived from the clustering algorithm for 2 and 6 resulting clusters (see Sect. 8 and Paper III);
$\triangleright$ $C_{\rm f}$ is the final retained classification, where "e'' and "i'' stand for "extrinsic'' and "intrinsic'', respectively.

Missing data are indicated by a dash.

  

Table 3: Henize S stars: CORAVEL data

  

Table 3: continued

  

Table 4: Henize S stars: Geneva photometric data

  

Table 4: continued

  

Table 5: Henize S stars: infrared photometric data

  

Table 5: continued

  

Table 6: Spectroscopic data and clustering results

  

Table 6: continued