Integral field spectroscopy of M1-67. A Wolf-Rayet nebula with luminous blue variable nebula appearance

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Table 4

Measured lines in all the integrated spectra.

			I(λ)/I(Hβ)

Line	λ (Å)	f(λ)	Region 1	Region 2	Region 3	Region 4^a	Region 5	Region 5 (model)^b	Region 6	Region 7

[Oii]	3727	0.322	...	...	...	...	47.5 ± 4.0^†	50.2	...	...
H7	3970	0.266	...	...	26.3 ± 1.8^†	...	...	15.8	18.2 ± 1.5^†	..
Hδ	4102	0.229	34.0 ± 4.8^†	27.0 ± 2.2^†	...	...	27.7 ± 1.9^†	25.7	33.9 ± 2.3^†	...
Hγ	4340	0.156	50.0 ± 2.2	47.7 ± 2.5	44.4 ± 1.6	...	51.4 ± 2.5	46.6	52.2 ± 2.6	64.9 ± 1.5^†
Hβ	4861	0.000	100.0 ± 0.7	100.0 ± 0.8	100.0 ± 0.5	100.0 ± 3.2	100.0 ± 0.3	100.0	100.0 ± 0.9	100.0 ± 1.8
[Oiii]	5007	–0.038	...	...	...	...	1.8 ± 0.1^†	2.0	0.9 ± 0.1^†	...
Hei	5016	–0.040	...	...	...	...	1.2 ± 0.6^†	0.5	...	...
[Nii]	5755	–0.185	...	...	...	...	3.2 ± 0.2	2.9	1.7 ± 0.2^†	...
Hei	5876	–0.203	...	...	...	...	2.5 ± 0.1^†	2.5	1.5 ± 0.1^†	...
[Nii]	6548	–0.296	106.8 ± 8.2	104.1 ± 2.6	103.3 ± 4.0	195.5 ± 7.1	139.2 ± 10.5	173.2	116.6 ± 10.3	61.3 ± 1.9
Hα	6563	–0.298	324.9 ± 19.6	312.7 ± 7.8	316.2 ± 12.2	303.3 ± 5.1	331.8 ± 25.2	293.8	336.8 ± 30.0	304.2 ± 9.2
[Nii]	6583	–0.300	330.7 ± 21.0	332.4 ± 8.3	328.2 ± 12.8	538.4 ± 4.4	425.7 ± 32.6	511.1	367.7 ± 33.1	202.0 ± 6.2
Hei	6678	–0.313	...	...	...	...	...	0.7	0.3 ± 0.1^†	...
[Sii]	6716	–0.318	12.6 ± 1.1	13.4 ± 0.4	12.4 ± 0.5	...	18.9 ± 1.5	20.0	16.6 ± 1.6	...
[Sii]	6731	–0.320	16.8 ± 1.3	18.4 ± 0.5	16.6 ± 0.7	...	19.7 ± 1.6	21.1	18.2 ± 1.7	...
F(Hβ)^c			151.77 ± 1.10	168.60 ± 1.30	92.41 ± 0.46	3.21 ± 0.10	22.97 ± 0.08	...	52.13 ± 0.48	1.89 ± 0.03
c(Hβ)			1.85 ± 0.08	1.88 ± 0.04	1.86 ± 0.06	1.87 ± 0.01	1.88 ± 0.11	...	1.93 ± 0.13	2.15 ± 0.04

Notes.The intensity values of each emission line were normalized to F(Hβ) = 100 and reddening-corrected.

^(a)

In Region 4, the Hβ flux was not measured. We estimated it by performing the inverse process of the extinction correction. See text for details.

^(b)

Emission lines intensities from the photoionization model performed for Region 5.

^(c)

Hβ fluxes in units of × 10^-16 erg cm^-2 s^-1 (not corrected for extinction).

^(†)

Lines with measures uncertain.

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