**Table 10:** Abundance patterns and correlations between [X/Y] ratios and [Zn/Fe] for all clouds observed in our sample of 11 DLAs.
$\lbrack$ X/Y]	# clouds $^{\rm 1}$	Mean	rms	$\chi _{\nu }^2$	# clouds $^{\rm 2}$	$\tau$ ^(a)	$P(\tau$ ) ^(b)	a^(c)	b ^(d)
$\lbrack$ Si/Fe]	79	0.390	0.183	18.10	22	0.686	0.000	$+0.241\pm 0.023$	$+0.534\pm 0.044$
$\lbrack$ S/Fe]	34	0.376	0.251	9.85	18	0.757	0.000	$+0.060\pm 0.038$	$+0.961\pm 0.083$
$\lbrack$ Si/Zn]	22	-0.033	0.173	11.60	22	-0.712	0.000	$+0.246\pm 0.025$	$-0.495\pm 0.041$
$\lbrack$ S/Zn]	18	0.032	0.101	1.62	18	-0.343	0.047	$+0.058\pm 0.032$	$-0.059\pm 0.071$
$\lbrack$ S/Si]	32	0.047	0.213	5.03	16	0.561	0.002	$-0.152\pm 0.037$	$+0.416\pm 0.079$
$\lbrack$ N/Si]	36	-1.005	0.318	17.04	12	0.412	0.062	no correlation
$\lbrack$ Mn/Fe]	29	-0.221	0.108	5.37	22	0.264	0.086	no correlation
$\lbrack$ Cr/Fe]	28	0.130	0.105	2.89	24	0.097	0.508	no correlation
$\lbrack$ Zn/Fe]	25	0.427	0.263	30.01

Note. For the definition of a "cloud'', see Sect. 5.

$^{\rm 1}$ Total number of clouds in our sample of 11 DLAs with a measurement of [X/Y]. The corresponding logarithmic weighted mean,
logarithmic rms dispersion, and reduced $\chi ^2$ are given in columns (3), (4), and (5), respectively.
$^{\rm 2}$ Number of clouds in our sample of 11 DLAs with both a measurement of [X/Y] and [Zn/Fe]. Data plotted in Fig. 16.
^(a) Kendall correlation factor of [X/Y] versus [Zn/Fe]. A positive value of $\tau$ corresponds to a correlation and a negative value to an
anti-correlation.
^(b) Probability under the null hypothesis of zero correlation from the Kendall test. A value <5% indicates a significant correlation.
^(c), ^(d) Zero point and slope, respectively, and their 1 $\sigma$ uncertainties, of the linear least-square regression ${\rm [X/Y]} = a + b \times \rm [Zn/Fe]$ ,
computed by taking into account the errors on both [X/Y] and [Zn/Fe] data points.

Source LaTeX | All tables | In the text