Star formation and gas flows in the centre of the NUGA galaxy NGC 1808 observed with SINFONI

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Volume 598 (February 2017)

A&A, 598 (2017) A55

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Table 1

Emission lines fluxes in the selected apertures, and derived quantities: extinction and ionised gas mass.

Aperture	Paβ	[Fe ii]	Paα	Brδ	Brγ	A _V	H ii mass
	λ1.282 μm	λ1.644 μm	λ1.876 μm	λ1.945 μm	λ2.166 μm	[mag]	[10⁵M_⊙]

N	87.54 ± 6.85	35.41 ± 4.00	197.65 ± 21.02	5.89 ± 0.95	15.19 ± 0.82	3.3 ± 0.3	6.8
R1	18.26 ± 1.33	5.13 ± 0.53	50.24 ± 1.92	1.16 ± 0.13	2.98 ± 0.13	2.0 ± 0.2	1.7
R2	28.97 ± 1.03	8.70 ± 0.37	69.36 ± 1.53	2.96 ± 0.10	5.00 ± 0.11	2.7 ± 0.1	2.4
R3	40.95 ± 1.00	10.02 ± 0.32	66.81 ± 1.39	4.48 ± 0.11	7.05 ± 0.11	2.8 ± 0.1	2.3
R4	40.09 ± 0.92	6.59 ± 0.39	53.28 ± 1.13	3.84 ± 0.13	6.86 ± 0.11	1.5 ± 0.1	1.8
R5	17.45 ± 0.63	5.86 ± 0.44	67.31 ± 1.51	3.34 ± 0.12	5.82 ± 0.13	1.7 ± 0.1	2.3
R6	20.31 ± 0.59	4.35 ± 0.25	46.73 ± 1.00	2.70 ± 0.05	4.70 ± 0.07	2.9 ± 0.1	1.6
R7^a	–	1.80 ± 0.10	52.50 ± 0.60	1.94 ± 0.06	3.59 ± 0.05	–	1.8
S	19.43 ± 1.37	7.63 ± 0.66	29.96 ± 1.36	1.29 ± 0.13	3.32 ± 0.15	1.7 ± 0.2	1.0
I1	11.73 ± 1.55	6.18 ± 0.76	22.67 ± 1.63	0.53 ± 0.22	1.94 ± 0.18	2.5 ± 0.4	0.8
I2	15.00 ± 1.02	5.11 ± 0.44	25.53 ± 1.17	1.08 ± 0.06	2.39 ± 0.10	2.2 ± 0.2	0.9

Notes. The emission line fluxes are corrected for extinction and given in units of 10^-18 W m^-2. All apertures have a radius of , which corresponds to a physical area of 6800 pc².

^(a)

Values are not corrected for extinction because extinction could not be determined in this aperture.

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