**Table 6:** Doppler shift and nonthermal velocities of chromospheric and transition region lines measured in the STIS E140H spectrum of $\alpha$ Cen A.
Ion	Log $T_{\rm e}$	N^a	Velocity	Nonthermal	Notes^c
			Shift^b	Velocity
			(km s^-1)	(km s^-1)
Si I	3.80	80	0.00 $\pm$ 0.12	7.5 $\pm$ 0.3
N I	3.85	5	-0.12 $\pm$ 0.10	14.6 $\pm$ 2.6
S I	3.95	37	0.59 $\pm$ 0.07	7.6 $\pm$ 0.4
C I	4.11	82	0.61 $\pm$ 0.09	9.9 $\pm$ 0.3
Fe II	4.23	90	1.50 $\pm$ 0.17	10.8 $\pm$ 0.3
Ni II	4.25	18	1.07 $\pm$ 0.34	10.9 $\pm$ 0.8
Si II	4.26	9	1.21 $\pm$ 0.05	23.7 $\pm$ 2.3
O I	4.31	3	1.01 $\pm$ 0.83	11.9 $\pm$ 3.2
S II	4.48	2	2.27 $\pm$ 1.17	15.4 $\pm$ 0.4
C II	4.62	2	1.68 $\pm$ 0.83	27.4 $\pm$ 1.3	1
C III	4.75	5	3.98 $\pm$ 0.64	28.7 $\pm$ 0.7
Si III	4.78	3	6.92 $\pm$ 0.25	27.1 $\pm$ 1.3
S III	4.81	1	5.05 $\pm$ 0.07	22.5 $\pm$ 0.3	1
Si IV	4.84	2	4.99 $\pm$ 1.47	25.7 $\pm$ 0.5	1
O III	4.97	2	4.73 $\pm$ 1.08	19.8 $\pm$ 7.3	1
C IV	5.03	2	7.28 $\pm$ 0.43	30.2 $\pm$ 1.0	1
O IV	5.21	2	7.25 $\pm$ 1.20	27.0 $\pm$ 0.5
N V	5.25	2	3.87 $\pm$ 0.19	30.2 $\pm$ 1.1	1
S V	5.26	1	11.49 $\pm$ 0.93	38.9 $\pm$ 0.2
O V	5.37	2	6.13 $\pm$ 1.25	33.1 $\pm$ 0.1	1

^a Number of lines selected to compute the velocity shift and nonthermal velocity.
^b Doppler shift computed assuming as reference the measured mean velocity of Si I lines, -23.85 $\pm$ 0.09 km s^-1.
^c We use 1 in this column to flag the ions for which all the measured lines were used to compute the velocity shift and nonthermal velocity.

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