Stellar populations and ionization mechanism in low luminosity active galactic nuclei
Abstract
We analyse the spectroscopic properties of a sample of Low Luminosity Active Galactic Nuclei (LLAGN) using spectral synthesis. We show that the Liner phenomenon occurs mainly in massive and metallic systems, with old stellar populations. We modelize the expected emission as a consecuence of evolved stars and found that it is totally in agreement with the observed emission in most of the LLAGNs, without invoking the presence of a non- stellar continuum to explain its nature. These results would indicate that many of the LLAGN should not be considered properly as "active" nuclei.
- Publication:
-
Boletin de la Asociacion Argentina de Astronomia La Plata Argentina
- Pub Date:
- 2009
- Bibcode:
- 2009BAAA...52..237V