Metallicity Determination in Seyfert 2 AGNs
Aims: To study calibrations of line ratios that can estimates metallicities of galaxies even in large redshift where the measurement of faint emission lines is not easy to obtain. Methods: We use the Cloudy Code to build a grid of photoionization models with lines ratios from the UV and, we compare...
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| Autores principales: | , , , |
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| Formato: | Objeto de conferencia |
| Lenguaje: | Inglés |
| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/167503 |
| Aporte de: |
| Sumario: | Aims: To study calibrations of line ratios that can estimates metallicities of galaxies even in large redshift where the measurement of faint emission lines is not easy to obtain. Methods: We use the Cloudy Code to build a grid of photoionization models with lines ratios from the UV and, we compare with a sample of 77 object AGNs Seyfert 2.
Results: We build semi-empirical calibrations between the metallicity of studied objects and the rest-frame intensity of the line ratios Nv λ1240 / Heii λ1640, C43=log[(Civ λ1549 + Ciii] λ1909) / Heii λ1640] and Ciii] λ1909 / Civ λ1549. |
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