Table 3: Parameters of the vertical abundance distributions.
Model / Element Abundances in $\log (N/N_{\rm tot})$ Abundance jump parameters in $\log\tau_{5000}$

$\log(gf) set$ Initial Upper atmosphere Low atmosphere Position Width

Pure rotation

8400g35 Mg -4.1 - $3.63\pm0.15$ - $5.79\pm2.17$ - $0.79\pm1.32$ $3.11\pm2.77$

8700g34 Mg -4.1 - $3.13\pm0.11$ - $6.07\pm1.21$ - $1.75\pm0.70$ $0.62\pm2.89$

8400g35 Si -4.4 - $5.84\pm0.08$ - $3.78\pm0.02$ - $0.98\pm0.02$ $0.07\pm0.10$

Garz+BBC Si -4.5 - $5.49\pm0.08$ - $3.61\pm0.02$ - $0.82\pm0.18$ $0.02\pm0.25$

8700g34 Si -4.0 - $5.76\pm0.21$ - $3.80\pm0.03$ - $1.09\pm0.30$ $0.09\pm0.45$

8400g35 Ca -5.3 - $5.62\pm0.04$ - $4.32\pm0.03$ - $0.74\pm0.14$ $0.20\pm0.25$

8700g34 Ca -5.0 - $5.24\pm0.04$ - $4.09\pm0.07$ - $0.62\pm0.21$ $0.13\pm0.64$

8400g35 Cr -4.8 - $5.04\pm0.06$ - $4.75\pm0.11$ - $1.05\pm0.67$ $0.03\pm3.30$

8700g34 Cr -4.6 - $4.68\pm0.05$ - $4.93\pm0.46$ - $0.94\pm1.21$ $0.38\pm4.63$

8400g35 Fe -4.0 - $4.50\pm0.03$ - $2.75\pm0.04$ - $0.66\pm0.06$ $0.05\pm0.61$

VALD Fe -4.0 - $4.10\pm0.02$ - $2.61\pm0.06$ - $0.54\pm0.07$ $0.09\pm4.22$

8700g34 Fe -3.7 - $4.06\pm0.02$ - $2.55\pm0.06$ - $0.55\pm0.08$ $0.04\pm0.38$

Rotation & macroturbulence

8400g35 Mg -4.1 - $2.92\pm0.18$ - $4.99\pm0.15$ - $2.20\pm0.43$ $1.27\pm3.50$

8700g34 Mg -4.1 - $3.42\pm0.15$ - $4.83\pm0.10$ - $1.84\pm0.58$ $0.00\pm40.18$

8400g35 Si -4.4 - $5.99\pm0.22$ - $3.87\pm0.02$ - $1.20\pm0.07$ $0.08\pm0.34$

8700g34 Si -4.0 - $5.51\pm0.23$ - $3.90\pm0.04$ - $1.20\pm1.12$ $0.01\pm1.69$

8400g35 Ca -5.3 - $5.49\pm0.04$ - $4.33\pm0.04$ - $0.70\pm0.16$ $0.12\pm0.19$

8700g34 Ca -5.0 - $5.11\pm0.05$ - $4.07\pm0.15$ - $0.57\pm0.48$ $0.08\pm2.74$

8400g35 Cr -4.6 - $4.83\pm0.43$ - $4.90\pm0.04$ - $2.40\pm5.22$ $0.24\pm60.17$

8700g34 Cr -4.6 - $4.52\pm0.05$ - $4.92\pm0.46$ - $1.40\pm0.10$ $0.01\pm0.00$

8400g35 Fe -4.0 - $4.47\pm0.03$ - $2.94\pm0.06$ - $0.72\pm0.09$ $0.01\pm0.31$

8700g34 Fe -3.7 - $3.93\pm0.02$ - $2.60\pm0.08$ - $0.49\pm0.09$ $0.14\pm0.52$

**Table 3:** Parameters of the vertical abundance distributions.
Model /	Element	Abundances in $\log (N/N_{\rm tot})$	Abundance jump parameters in $\log\tau_{5000}$
$\log(gf) set$		Initial	Upper atmosphere	Low atmosphere	Position	Width
Pure rotation
8400g35	Mg	-4.1	- $3.63\pm0.15$	- $5.79\pm2.17$	- $0.79\pm1.32$	$3.11\pm2.77$
8700g34	Mg	-4.1	- $3.13\pm0.11$	- $6.07\pm1.21$	- $1.75\pm0.70$	$0.62\pm2.89$
8400g35	Si	-4.4	- $5.84\pm0.08$	- $3.78\pm0.02$	- $0.98\pm0.02$	$0.07\pm0.10$
Garz+BBC	Si	-4.5	- $5.49\pm0.08$	- $3.61\pm0.02$	- $0.82\pm0.18$	$0.02\pm0.25$
8700g34	Si	-4.0	- $5.76\pm0.21$	- $3.80\pm0.03$	- $1.09\pm0.30$	$0.09\pm0.45$
8400g35	Ca	-5.3	- $5.62\pm0.04$	- $4.32\pm0.03$	- $0.74\pm0.14$	$0.20\pm0.25$
8700g34	Ca	-5.0	- $5.24\pm0.04$	- $4.09\pm0.07$	- $0.62\pm0.21$	$0.13\pm0.64$
8400g35	Cr	-4.8	- $5.04\pm0.06$	- $4.75\pm0.11$	- $1.05\pm0.67$	$0.03\pm3.30$
8700g34	Cr	-4.6	- $4.68\pm0.05$	- $4.93\pm0.46$	- $0.94\pm1.21$	$0.38\pm4.63$
8400g35	Fe	-4.0	- $4.50\pm0.03$	- $2.75\pm0.04$	- $0.66\pm0.06$	$0.05\pm0.61$
VALD	Fe	-4.0	- $4.10\pm0.02$	- $2.61\pm0.06$	- $0.54\pm0.07$	$0.09\pm4.22$
8700g34	Fe	-3.7	- $4.06\pm0.02$	- $2.55\pm0.06$	- $0.55\pm0.08$	$0.04\pm0.38$
Rotation & macroturbulence
8400g35	Mg	-4.1	- $2.92\pm0.18$	- $4.99\pm0.15$	- $2.20\pm0.43$	$1.27\pm3.50$
8700g34	Mg	-4.1	- $3.42\pm0.15$	- $4.83\pm0.10$	- $1.84\pm0.58$	$0.00\pm40.18$
8400g35	Si	-4.4	- $5.99\pm0.22$	- $3.87\pm0.02$	- $1.20\pm0.07$	$0.08\pm0.34$
8700g34	Si	-4.0	- $5.51\pm0.23$	- $3.90\pm0.04$	- $1.20\pm1.12$	$0.01\pm1.69$
8400g35	Ca	-5.3	- $5.49\pm0.04$	- $4.33\pm0.04$	- $0.70\pm0.16$	$0.12\pm0.19$
8700g34	Ca	-5.0	- $5.11\pm0.05$	- $4.07\pm0.15$	- $0.57\pm0.48$	$0.08\pm2.74$
8400g35	Cr	-4.6	- $4.83\pm0.43$	- $4.90\pm0.04$	- $2.40\pm5.22$	$0.24\pm60.17$
8700g34	Cr	-4.6	- $4.52\pm0.05$	- $4.92\pm0.46$	- $1.40\pm0.10$	$0.01\pm0.00$
8400g35	Fe	-4.0	- $4.47\pm0.03$	- $2.94\pm0.06$	- $0.72\pm0.09$	$0.01\pm0.31$
8700g34	Fe	-3.7	- $3.93\pm0.02$	- $2.60\pm0.08$	- $0.49\pm0.09$	$0.14\pm0.52$

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations and spectrum reduction
	3 The global atmospheric parameters
	4 Abundance analysis
	5 Abundance stratification
	6 Discussion
	References