Star-powered LINERs in the Sloan Digital Sky Survey

Abstract

Galaxies are usually classified as star forming or active by using diagnostic diagrams, such as [N II]/Halpha vs. [O III]/Hbeta. Active galaxies are further classified into Seyfert or LINER-like sources. We claim that a non-negligible fraction of galaxies classified as LINERs in the Sloan Digital Sky Survey are in fact ionized by hot post-AGB stars and white dwarfs.

To appear in the proceedings of "The Starburst-AGN Connection" conference (2008). Corrected Fig. 3