Identification of Ionizing Processes in Starbursts and AGNs from Nebular Diagnostics

E. Moy; B. Rocca-Volmerange

doi:10.1051/eas:2001020

All issues

Volume 1 (2001)

EAS Publications Series, 1 (2001) 175-178

Abstract

Issue		EAS Publications Series Volume 1, 2001 AGN in their cosmic environment


Page(s)		175 - 178
Section		Short Communications or Posters
DOI		https://doi.org/10.1051/eas:2001020
Published online		22 November 2011

AGN in their Cosmic Environment
B. Rocca-Volmerange, and H. Sol (eds)
EAS Publications Series, 1 (2001) 175–178

Identification of Ionizing Processes in Starbursts and AGNs from Nebular Diagnostics

E. Moy and B. Rocca-Volmerange

Abstract

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