Free Access

Fig. 20

thumbnail

[OIII]λ5007/Hβ vs. [NII]λ6583/Hα diagnostic diagram for integrated (left panel) and central (right panel) spectra of the currently observed CALIFA sample. Upper limits are indicated with an arrow, if only one of the two ratios could be accurately determined. We also plot data derived from the SDSS spectra of the CALIFA mother sample (orange open squares). The Kauffmann et al. (2003) (blue dashed-line) and Kewley et al. (2001) (red solid-line) demarcation curves are usually invoked to distinguish between SF galaxies and AGN with an intermediate region in between.

This figure is made of several images, please see below:

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.