Table 4: Parameters of the Ca stratification and isotopic anomaly determined for magnetic CP stars.
HD Stratification parameters Ca isotopic anomaly Comment

number $\log ({\rm Ca}/N_{\rm tot})_{\rm up}$ $\log ({\rm Ca}/N_{\rm tot})_{\rm lo}$ $\log\tau_{\rm 5000}({\rm step})$ $\Delta\log\tau_{\rm 5000}({\rm step})$ $\log\tau_{\rm 5000}({\rm isot})$ isotope

965 -8.4 -4.9 -0.7 0.1 -4.9 ⁴⁶Ca a,d

24712 -8.7 -5.1 -1.2 2.5 -1.4 ⁴⁶Ca c,d

29578 -8.9 -4.3 -1.2 0.7

47103 -7.7 -4.6 -0.8 0.3

66318 -8.0 -5.0 -0.6 1.1

75445 -8.9 -4.9 -0.9 0.2 -2.0 ⁴⁸Ca

101065 -8.9 -5.3 -0.4 0.4 -0.2 ⁴⁸Ca

111133 -10.0 -6.3 -2.0 0.4 -1.5 ⁴⁴Ca

116114 -7.4 -4.7 -1.3 0.2 -3.8 ⁴⁸Ca b

118022 -7.0 -2.0 -0.1 0.3 -1.5 ⁴⁸Ca

122970 -7.7 -5.1 -1.5 2.8 -1.6 ⁴⁶Ca c,d

128898 -8.5 -4.0 -1.0 2.0 -1.9 ⁴⁸Ca c,d

133792 -8.1 -5.6 -0.6 0.1 -1.0 ⁴⁸Ca

134214 -8.4 -4.8 -0.9 0.9 -1.5 ⁴⁸Ca

137909 -8.2 -4.4 -1.0 0.4 -4.4 ⁴⁸Ca a

137949 -9.6 -3.5 -1.0 1.8 -4.9 ⁴⁸Ca a,c

144897 -8.5 -5.2 -1.9 0.5

166473 -8.5 -3.8 -1.0 1.1 d

170973 -5.3 -5.0 -1.1 0.1

176232 -9.0 -4.1 -1.2 1.8 -1.2 ⁴⁸Ca d

188041 -7.4 -3.1 -1.2 2.5 -3.7 ⁴⁶Ca c,d

203932 -8.7 -4.5 -1.2 2.6 -2.1 ⁴⁸Ca c,d

217522 -8.8 -4.8 -0.3 0.7 -0.6 ⁴⁸Ca b

The columns give HD number of stars, step-function parameters of the vertical Ca distributions (abundance in upper atmosphere, abundance in the lower layers, position of the abundance jump and the width of the transition zone), parameters of the Ca isotopic separation if applicable (the optical depth of the boundary between the heavy and light Ca layers, the dominant isotopic component of the heavy Ca cloud). The last column indicates deviation of the final Ca stratification profile from a simple step-function.
Comments. a - abundance increase in the upper layers; b - complex transition zone; c - distortion of the step-function after $\log \rho x$ to $\log~\tau_{\rm 5000}$ transformation; d - a change in the upper abundance value.

**Table 4:** Parameters of the Ca stratification and isotopic anomaly determined for magnetic CP stars.
HD	Stratification parameters	Ca isotopic anomaly	Comment
number	$\log ({\rm Ca}/N_{\rm tot})_{\rm up}$	$\log ({\rm Ca}/N_{\rm tot})_{\rm lo}$	$\log\tau_{\rm 5000}({\rm step})$	$\Delta\log\tau_{\rm 5000}({\rm step})$	$\log\tau_{\rm 5000}({\rm isot})$	isotope
965	-8.4	-4.9	-0.7	0.1	-4.9	⁴⁶Ca	a,d
24712	-8.7	-5.1	-1.2	2.5	-1.4	⁴⁶Ca	c,d
29578	-8.9	-4.3	-1.2	0.7
47103	-7.7	-4.6	-0.8	0.3
66318	-8.0	-5.0	-0.6	1.1
75445	-8.9	-4.9	-0.9	0.2	-2.0	⁴⁸Ca
101065	-8.9	-5.3	-0.4	0.4	-0.2	⁴⁸Ca
111133	-10.0	-6.3	-2.0	0.4	-1.5	⁴⁴Ca
116114	-7.4	-4.7	-1.3	0.2	-3.8	⁴⁸Ca	b
118022	-7.0	-2.0	-0.1	0.3	-1.5	⁴⁸Ca
122970	-7.7	-5.1	-1.5	2.8	-1.6	⁴⁶Ca	c,d
128898	-8.5	-4.0	-1.0	2.0	-1.9	⁴⁸Ca	c,d
133792	-8.1	-5.6	-0.6	0.1	-1.0	⁴⁸Ca
134214	-8.4	-4.8	-0.9	0.9	-1.5	⁴⁸Ca
137909	-8.2	-4.4	-1.0	0.4	-4.4	⁴⁸Ca	a
137949	-9.6	-3.5	-1.0	1.8	-4.9	⁴⁸Ca	a,c
144897	-8.5	-5.2	-1.9	0.5
166473	-8.5	-3.8	-1.0	1.1			d
170973	-5.3	-5.0	-1.1	0.1
176232	-9.0	-4.1	-1.2	1.8	-1.2	⁴⁸Ca	d
188041	-7.4	-3.1	-1.2	2.5	-3.7	⁴⁶Ca	c,d
203932	-8.7	-4.5	-1.2	2.6	-2.1	⁴⁸Ca	c,d
217522	-8.8	-4.8	-0.3	0.7	-0.6	⁴⁸Ca	b

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