Table 4.
Mean offsets and standard deviation values for the samples of dwarf galaxies, starbursts and (U)LIRGs derived from the comparison (ΔO/H) between the IR abundances obtained with HCM-IR and the different optical-based methods, namely HCM, the direct method (DM), and the R and S strong-line calibrations from Pilyugin & Grebel (2016).
| ΔO/H | Dwarfs | Starbursts | (U)LIRGs | Total | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | σ | N | Mean | σ | N | Mean | σ | N | Mean | σ | N | |
| HCM | −0.08 | 0.24 | 25 | −0.04 | 0.16 | 16 | +0.12 | 0.12 | 8 | −0.03 | 0.21 | 49 |
| DM | −0.08 | 0.23 | 28 | – | – | – | – | – | – | – | – | – |
| PG16-R | −0.03 | 0.22 | 22 | −0.11 | 0.22 | 11 | +0.13 | – | 3 | −0.04 | 0.22 | 36 |
| PG16-S | −0.05 | 0.24 | 23 | −0.12 | 0.21 | 14 | +0.13 | 0.05 | 8 | −0.04 | 0.23 | 45 |
Notes. Results in the last three columns correspond to the total sample of galaxies.
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