A great diversity of spectral shapes in the ionising spectra of z ∼ 0.6–1 galaxies revealed by HST/COS and possible detection of nebular LyC emission

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Table 4.

Electron temperatures, electron number densities, and element abundances in H II regions derived from SDSS spectra.

Galaxy	J0232+0025	J0256+0122	J0815+2942	J0837+4512	J0901+5111	J0908+4626
T_e ([O III]), K	12 250 ± 2420	13 570 ± 2450	10 550 ± 2700	14 080 ± 3380	14 670 ± 1730	11 210 ± 2450
T_e ([O II]), K	12 050 ± 2240	13 080 ± 2210	10 530 ± 2500	13 430 ± 3010	13 810 ± 1520	11 120 ± 2310
N_e ([S II]), cm⁻³	100 ± 10	100 ± 10	100 ± 10	100 ± 10	100 ± 10	100 ± 10
12+log O/H	8.13 ± 0.06	7.95 ± 0.04	8.36 ± 0.38	7.93 ± 0.05	7.99 ± 0.02	8.13 ± 0.08
log Ne/O	−0.73 ± 0.16	−0.69 ± 0.12	−0.90 ± 0.40	−0.71 ± 0.15	−0.85 ± 0.08	−0.65 ± 0.20
log Mg/O	−1.10 ± 0.21	−1.33 ± 0.17	−1.35 ± 0.63	−1.64 ± 0.27	−1.39 ± 0.12	−1.24 ± 0.28

Galaxy	J0955+3935	J1021+0436	J1252+5237	J1358+4611	J1450+3913

T_e ([O III]), K	15 420 ± 2670	10 240 ± 3150	13 770 ± 2020	12 490 ± 1670	12 440 ± 1640
T_e ([O II]), K	14 230 ± 2300	10 190±3020	13 220±1810	12 250±1540	12 210±1520
N_e ([S II]), cm⁻³	100 ± 10	100 ± 10	100 ± 10	100 ± 10	100 ± 10
12+log O/H	7.83 ± 0.03	8.41 ± 0.15	7.98 ± 0.03	8.06 ± 0.04	8.04 ± 0.04
log Ne/O	−0.83 ± 0.10	−0.76 ± 0.33	−0.74 ± 0.10	−0.75 ± 0.11	−0.83 ± 0.11
log Mg/O	−1.43 ± 0.14	−1.30 ± 0.48	−1.06 ± 0.14	−1.29 ± 0.14	−1.59 ± 0.15

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