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Table A.17
Comparison of several abundance gradient studies which use various sources.
| Study | Sources | Waveband | Element | Slope (dex/kpc) | Rg range (kpc) |
|---|---|---|---|---|---|
| This work | PNe | IR, Optical | Ne | −0.058 ± 0.021 | 3–21* |
| S | −0.079 ± 0.012 | 3–21* | |||
| Ar | −0.062 ± 0.023 | 3–21* | |||
| Maciel & Quireza (1999) | PNe | IR, Optical | O | −0.058 ± 0.007 | 4–14 |
| Ne | −0.036 ± 0.010 | 4–14 | |||
| S | −0.077 ± 0.011 | 4–13 | |||
| Ar | −0.051 ± 0.010 | 4–13 | |||
| Pottasch & Bernard-Salas (2006) | PNe | IR, Optical, UV | O, Ne, S, Ar | −0.085 | 3–11 |
| Maciel et al. (2015) | PNe | Multiple | O | −0.025 ± 0.006 | 0–15 |
| Martín-Hernández et al. (2002) | H II regions | Optical | Ne | −0.039 ± 0.007 | 0–14 |
| Ar | −0.045 ± 0.011 | 0–13 | |||
| Esteban et al. (2017) | H II regions | Optical | O | −0.040 ± 0.005 | 5–17† |
| Fernández-Martín et al. (2017) | H II regions | Optical | O | −0.053 ± 0.009 | 11–18 |
| S | −0.106 ± 0.006 | 11–18 | |||
| Ar | −0.074 ± 0.006 | 11–18 | |||
| Fitzsimmons et al. (1992) | B-type stars | Multiple | O | −0.03 ± 0.02 | 5–14 |
| Rolleston et al. (2000) | B-type stars | Optical | O | −0.067 ± 0.008 | 6–18 |
| Andrievsky et al. (2002b) | Cepheids | IR | O | −0.022 ± 0.009 | 6–11 |
| S | −0.051 ± 0.008 | 6–11 | |||
| Lemasle et al. (2013) | Cepheids | Optical, near-IR | S | −0.095 ± 0.015 | 4–19‡ |
| Henry et al. (2004) | PNe, H II regions, B-type stars, Cepheids | Multiple | O | −0.037 ± 0.008 | 0–18 |
| Ne | −0.044 ± 0.014 | 2–14 | |||
| S | −0.048 ± 0.010 | 0–17 | |||
| Ar | −0.030 ± 0.010 | 2–17 |
Notes. Studies with “multiple” wavebands use data from several references. * Includes data from Pottasch & Bernard-Salas (2006); † Includes data from Esteban et al. (2015); ‡ Includes data from Luck & Lambert (2011).
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