Low-redshift lowest-metallicity star-forming galaxies in the SDSS DR14

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Table A.2.

Emission-line intensities and oxygen abundances of the extremely low-metallicity SDSS galaxies from the DR14.

	Line intensities^a							12 + log O/H^b

Name	[O II]^c	[O III]	[O III]	[O II]	[N II]	F(Hβ)^d	EW(Hβ)^e	d	se	s	M_g ^f	log M_⋆ ^g
	3727	4959	4363	7325	6584
J0006+2413	0.439	0.826	0.121	...	...	3.9	39.5	7.25	7.31	7.30	−15.0	7.6
J0015+0104^h	(0.898)	0.252	...	...	0.045	5.0	177.1	...	7.03	7.06	−15.4	4.2
J0029−0025	(0.959)	0.726	0.146	...	0.048	1.8	35.1	7.25	7.37	7.34	−14.4	6.3
J0042+3247^h	0.804	0.733	0.100	...	...	2.4	68.0	7.22	7.34	7.32	−17.2	8.0
J0106+2345	0.223	0.652	0.063	...	...	0.4	277.0	7.17	7.11	7.12	−15.2	6.4
J0107+0103	(1.682)	0.455	...	0.056	0.144	18.5	20.6	...	7.35	7.31	−10.3	5.8
J0113+0052^h	(0.680)	0.617	0.091	...	0.034	6.6	46.3	7.16	7.22	7.25	−12.3	5.9
J0122+0048^h	0.548	0.856	0.100	...	...	7.2	156.0	7.22	7.36	7.33	−16.1	6.8
J0137+2032	1.293	0.559	...	...	...	0.4	26.7	...	7.34	7.31	−15.2	6.7
J0143+1958^h	1.597	0.433	...	...	...	1.4	20.8	...	7.33	7.29	−7.8	4.4
J0153+0104^h	0.214	1.311	0.134	...	...	8.3	229.1	7.39	7.58	7.38	−16.2	6.2
J0207−0821^h	0.883	0.661	...	...	0.105	3.7	29.3	...	7.31	7.30	−14.2	6.9
J0222−0935^h	0.915	0.781	0.103	...	0.099	1.9	59.5	7.26	7.39	7.36	−17.2	7.9
J0223−0918^h	1.248	0.677	...	...	...	0.6	23.1	...	7.40	7.36	−16.0	7.5
J0247−0404	0.628	0.404	...	...	...	3.7	85.0	...	7.04	7.11	−14.1	7.0
J0314−0108	0.494	0.826	0.084	0.021	0.113	26.2	31.3	7.26	7.33	7.31	−18.9	7.3
J0808+3244	1.819	0.340	0.036	...	0.102	8.6	50.4	7.31	7.32	7.28	−18.9	8.9
J0811+4730^h	0.187	0.570	0.088	...	...	15.5	282.0	6.97	7.02	7.03	−17.3	5.8
J0834+5905^h	(0.986)	0.552	0.059	...	0.049	8.6	22.3	7.22	7.26	7.27	−15.6	6.7
J0859+3923^h	(1.989)	0.438	0.086	0.065	0.091	5.9	28.3	7.35	7.41	7.34	−12.8	5.4
J0906+2528^h	(1.864)	0.582	...	...	0.093	7.0	14.4	...	7.46	7.39	−16.2	6.7
J0911+3135^h	(1.544)	0.519	0.058	...	0.077	8.4	16.2	7.32	7.37	7.33	−12.9	5.6
J0921+4038	0.276	1.342	0.181	...	...	7.4	300.5	7.32	7.61	7.42	−15.9	6.6
J0934+5514A^h	(0.185)	0.678	0.072	0.016	0.006	194.9	57.6	7.14	7.12	7.09	−14.1	6.2
J0934+5514B^h	(0.505)	0.557	0.045	0.014	0.014	374.6	147.7	7.26	7.12	7.18	−13.1	5.1
J0944+0936	(1.844)	0.463	0.050	0.060	0.160	7.6	18.7	7.34	7.39	7.34	−10.5	5.3
J0945+3835^h	1.238	0.845	0.124	...	...	3.5	93.9	7.33	7.50	7.42	−16.8	6.9
J0949+3426	(1.280)	0.667	0.039	0.042	0.118	12.8	33.4	7.55	7.40	7.36	−16.2	6.0
J0950+3127^h	(2.485)	0.416	0.071	...	0.124	2.8	12.4	7.42	7.49	7.39	−12.7	5.3
J0955+6442^h	(1.339)	0.263	0.047	...	0.067	6.5	62.9	7.16	7.17	7.16	−12.9	5.1
J0956+2849^h	(2.124)	0.203	...	0.070	0.071	7.6	17.8	...	7.31	7.25	−14.6	4.9
J0959+4626^h	(1.486)	0.413	0.050	...	0.074	9.5	54.1	7.26	7.29	7.27	−12.2	5.2
J1000+3032^h	(1.939)	0.422	...	...	0.097	3.3	16.4	...	7.39	7.33	−12.5	5.5
J1034+1546^h	(1.979)	0.521	0.057	...	0.099	9.6	19.8	7.37	7.45	7.38	−13.9	6.0
J1036+2036^h	0.917	0.719	0.076	...	...	2.8	83.3	7.31	7.35	7.33	−15.6	7.0
J1053+4713	0.481	1.005	0.130	...	...	5.2	92.2	7.24	7.44	7.38	−16.9	7.3
J1109+2007^h	(0.685)	0.723	0.093	0.023	0.056	15.8	61.5	7.19	7.30	7.30	−14.1	6.1
J1119+0935^h	(0.870)	0.613	0.058	0.029	0.069	23.2	29.8	7.27	7.27	7.28	−14.0	5.9
J1121+3744^h	(1.825)	0.336	...	...	0.091	2.0	12.9	...	7.32	7.28	−15.2	6.4
J1139+1917	(1.821)	0.459	...	...	0.091	7.1	39.3	...	7.39	7.33	−17.1	7.3
J1153+3419	(1.876)	0.459	...	0.062	0.183	4.4	9.0	...	7.40	7.34	−15.4	6.9
J1157+1713	(0.994)	0.219	...	...	0.050	2.1	9.9	...	7.05	7.05	−17.1	7.2
J1157+5638	(0.297)	1.099	0.076	0.010	0.030	52.2	85.1	7.52	7.47	7.36	−13.3	5.2
J1206+5007ⁱ	0.439	0.826	0.121	...	...	7.4	218.5	7.19	7.31	7.30	−15.5	6.0
J1206+5007ⁱ	0.328	0.813	0.085	...	...	7.5	195.4	7.20	7.28	7.26	−15.3	6.7
J1208+3727^h	(1.889)	0.362	...	0.062	0.083	5.3	18.7	...	7.35	7.30	−14.6	6.2
J1220+4915^h	0.225	0.997	0.128	...	...	13.9	169.2	7.20	7.38	7.28	−13.0	5.6
J1223+0727	(1.347)	0.695	0.065	...	0.067	8.7	26.3	7.36	7.43	7.38	−13.9	5.8
J1226+0952	(1.374)	0.390	0.062	0.045	0.102	6.5	35.3	7.21	7.25	7.24	−14.2	5.4
J1228−0125^h	1.616	0.558	...	...	0.043	1.8	107.0	...	7.40	7.35	−16.4	6.9
J1234+3901	0.131	0.650	0.069	...	...	12.4	242.0	7.03	7.07	6.98	−17.6	7.4
J1235+2755^h	(1.493)	0.631	...	0.049	0.118	12.2	31.3	...	7.42	7.37	−7.9	5.6
J1244+3212^h	(0.796)	0.638	0.038	0.026	0.086	23.9	7.2	7.50	7.27	7.28	−15.7	6.3
J1250+1728	(2.647)	0.194	...	...	0.132	3.7	15.2	...	7.41	7.31	−14.6	5.8
J1257+3341^h	(1.741)	0.576	0.039	0.057	0.040	29.9	108.8	7.52	7.44	7.37	−13.8	5.4
J1258+1413^h	(1.500)	0.469	0.068	0.049	0.073	19.0	16.3	7.27	7.33	7.30	−12.5	5.8
J1308+2002^h	(1.592)	0.676	...	...	0.080	3.6	7.3	...	7.47	7.40	−15.5	6.3
J1314+2438	(2.074)	0.277	...	...	0.104	1.9	6.2	...	7.34	7.28	−16.6	6.9
J1315+1745	(1.624)	0.647	0.070	0.053	0.145	23.3	14.8	7.38	7.46	7.39	−15.6	6.4
J1414−0208^h	(1.417)	0.523	0.051	0.047	0.025	11.4	54.9	7.30	7.34	7.31	−14.2	6.1
J1424+5200	1.117	0.427	...	...	0.065	0.2	12.5	...	7.21	7.22	−15.9	7.1
J1433+1544	0.914	0.838	0.078	0.040	0.066	2.0	34.4	7.37	7.45	7.39	−13.5	7.1
J1444+4237^h	(0.850)	0.833	0.100	0.028	0.049	17.9	30.2	7.27	7.41	7.37	−14.4	5.4
J1522+4201	(2.598)	0.333	...	...	0.130	4.0	18.5	...	7.47	7.37	−12.3	5.5
J1640+2845	(1.998)	0.500	...	...	0.100	3.2	32.3	...	7.44	7.37	−14.7	5.8
J1703+2126	1.816	0.425	...	...	0.077	0.7	8.9	...	7.37	7.32	−19.0	8.6
J2104−0035^h	(1.171)	0.387	...	...	0.042	9.6	20.7	...	7.20	7.20	−14.9	6.2

Notes.

^(a)

Extinction-corrected line intensity relative to the Hβ emission line intensity. Values in parentheses are calculated [O II] λ3727 line intensities in galaxies where this line is outside the wavelength range of the SDSS spectrum.

^(b)

s - strong line method, se - semi-empirical method, d - direct method.

^(c)

The value in parentheses is derived from the [O II]7325 flux if available or from the [N II]6584 flux otherwise.

^(d)

Observed flux of the Hβ emission line in 10⁻¹⁶ erg s⁻¹ cm⁻².

^(e)

Equivalent width of the Hβ emission line in Å.

^(f)

Absolute SDSS g magnitude.

^(g)

log of stellar mass in log M_⊙.

^(h)

Discussed in Izotov & Thuan (2007), Papaderos et al. (2008), Izotov et al. (2006b, 2012, 2018a), Guseva et al. (2015, 2017).

⁽ⁱ⁾

Different observations of the same galaxy.

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