Ionised gas abundances in barred spiral galaxies | Astronomy & Astrophysics (A&A)

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Volume 543 (July 2012)

A&A, 543 (2012) A150

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Table 5

Oxygen abundance gradients derived using all adopted methods, for run1 galaxies.

Galaxy	grad-N2	grad-O3N2	grad-SB1	12 + log (O/H)¹	12 + log (O/H)²	R₂₅³	AGN
	dex/arcsec	dex/arcsec	dex/arcsec	dex	dex	arcsec	arcsec

NGC 1433^†	−0.0022 ± 0.0002	0.0012 ± 0.0002	0.01 ± 0.01	8.68 ± 0.03	8.724 ± 0.008	184.98
	−0.0014 ± 0.0002	0.0009 ± 0.0002			8.77 ± 0.01		3.7
NGC 2217^†	−0.0054 ± 0.0009	0.0021 ± 0.0008	−0.023 ± 0.007	8.674 ± 0.03	8.699 ± 0.009	140.32
	0.0004 ± 0.0025	−0.0002 ± 0.0009			8.76 ± 0.03		16.8
NGC 2665	−0.0041 ± 0.0006	−0.0010 ± 0.0006	–	8.718 ± 0.03	8.739 ± 0.009	59.86
NGC 2935	−0.0034 ± 0.0003	0.0019 ± 0.0004	–	8.649 ± 0.02	8.714 ± 0.007	125.06
NGC 3081^†	−0.0023 ± 0.0010	0.0142 ± 0.0009	0.024 ± 0.012	8.369 ± 0.02	8.332 ± 0.009	75.36
	−0.0025 ± 0.0021	0.0187 ± 0.0018			8.22 ± 0.04		7.5
NGC 4643^†	0.004 ± 0.003	−0.003 ± 0.002	–	8.751 ± 0.06	8.756 ± 0.019	67.16	13.2
NGC 5101^†	−0.028 ± 0.008	−0.004 ± 0.008	–	8.784 ± 0.03	8.780 ± 0.019	176.66	3.5

Notes. Units are dex/arcsec.

⁽¹⁾

Central oxygen abundance of gas, estimated with an aperture of 1.2 arcsec, and calculated with the O3N2 method.

⁽²⁾

Central oxygen abundance of gas, as a result of the fit, calculated with the O3N2 method.

⁽³⁾

R₂₅ is from the Hyperleda galaxy catalogue.

⁽⁵⁾

AGN-affected region, in arcsec, obtained from Fig. 7.

^(†)

Same as Table 4.

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