Image Details

Choose export citation format:

Beyond BPT: A New Multidimensional Diagnostic Diagram for Classifying Power Sources Tested Using the SAMI Galaxy Survey

  • Authors: Victor D. Johnston, Anne M. Medling, Brent Groves, Lisa J. Kewley, Luca Cortese, Scott Croom, Ángel R. López-Sánchez, Henry Zovaro, Joss Bland-Hawthorn, Julia Bryant, Jon Lawrence, Matt Owers, Samuel Richards, Jesse van de Sande

Victor D. Johnston et al 2023 The Astrophysical Journal 954 .

  • Provider: AAS Journals

Caption: Figure 5.

Emission-line diagnostics and maps for GAMA 376478. The first row are the BPT/VO87 diagrams colored according to our new diagnostic: black points are spaxels dominated by star formation and colored points are spaxels with AGN ionization colored by increasing radius from the center of the galaxy. The middle row contains plots of log([N II]/Hα), log([O III]/Hβ), and effective radius vs. velocity dispersion. The last row contains a histogram of the velocity dispersion with a vertical line denoting the two components in velocity dispersion space, a map of the velocity dispersion, a map of the AGN fraction, which shows the relative contribution of AGN ionization on a per-spaxel basis, and a three-color image on the right matching the FOV of the SAMI data.

Other Images in This Article

Show More

Copyright and Terms & Conditions

Additional terms of reuse