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Identification of Ionizing Processes in Starbursts and AGNs from Nebular Diagnostics

Published online by Cambridge University Press:  22 November 2011

B. Rocca-Volmerange ,
H. Sol ,
E. Moy  and
B. Rocca-Volmerange
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Abstract

We present the analysis of emission line spectra of AGNs andstarbursts with the help of models coupling shocks and photoionizationby AGNs and by massive stars. We show how shocks and photoionizationby the central source have to coexist in AGNs in order to reproducethe observed emission line ratios. We also show how stellar photoionizationmodels can be reconciled with the values of the [OI]/Hα and[SII]/Hα ratios observed in starbursts, without requiring an additionalionizing source such as shocks.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 1: AGN in their cosmic environment , 2001 , pp. 175 - 178
Copyright
© EAS, EDP Sciences 2002

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