Table 1: Derived maximum velocities where the blue and red wings reach the continuum. Listed are some forbidden emission lines and some Balmer lines in the FEROS spectrum whose maximum wing velocities could be determined well and which are not blended.
Ion $\lambda$ $v_{\rm blue}$ $v_{\rm red}$

[Å] [km s^-1] [km s^-1]

O III 4363 -75 +45

O III 4959 -80 +65

O III 5007 -70 +60

O I 5577 -25 +25

O I 6300 -50 +40

O I 6364 -50 +30

S III 6312 -60 +50

S II 4068 -25 +25

S II 4076 -50 +35

S II 6716 -50 +30

S II 6731 -50 +35

N II 5755 -70 +20

N II 6548 -70 +45

N II 6584 -80 +50

Fe II 7155 -40 +30

Cl III 5517 -30 +100

Cl III 5538 -50 +40

H $\alpha$ 6563 -1800 +1800

H $\beta$ 4861 -160 +160

H $\gamma$ 4340 -140 +140

H $\delta$ 4101 -100 +100

H $\epsilon$ 3970 -100 +100

H8 3889 -100 +40

**Table 1:** Derived maximum velocities where the blue and red wings reach the continuum. Listed are some forbidden emission lines and some Balmer lines in the FEROS spectrum whose maximum wing velocities could be determined well and which are not blended.
Ion	$\lambda$	$v_{\rm blue}$	$v_{\rm red}$
	[Å]	[km s^-1]	[km s^-1]
O III	4363	-75	+45
O III	4959	-80	+65
O III	5007	-70	+60
O I	5577	-25	+25
O I	6300	-50	+40
O I	6364	-50	+30
S III	6312	-60	+50
S II	4068	-25	+25
S II	4076	-50	+35
S II	6716	-50	+30
S II	6731	-50	+35
N II	5755	-70	+20
N II	6548	-70	+45
N II	6584	-80	+50
Fe II	7155	-40	+30
Cl III	5517	-30	+100
Cl III	5538	-50	+40
H $\alpha$	6563	-1800	+1800
H $\beta$	4861	-160	+160
H $\gamma$	4340	-140	+140
H $\delta$	4101	-100	+100
H $\epsilon$	3970	-100	+100
H8	3889	-100	+40

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations and reductions
	3 The spectral atlas
	4 The nature of the circumstellar material: nebula or wind?
	5 Modeling of the non-spherical wind
	6 Discussion
	7 Conclusions
	References
	Online Material