Table A.1.
Activity table based on Mingo et al. (2016).
| Label | WISE color selection | Mid-IR/Optical | X-rays | Radio |
|---|---|---|---|---|
| Elliptical | [W1]−[W2]< 0.5; 0 < [W2]−[W3]< 1.6 | Elliptical galaxy (isolated) | Rad. inefficient AGN | LERG |
| Elliptical galaxy (cluster) | Hot ICM gas | |||
| LINER | ||||
| Spiral | [W1]−[W2]< 0.5; 1.6 ≤ [W2]−[W3]< 3.4 | Star-forming galaxy | Star formation | Star formation |
| Star-forming galaxy + AGN | Seyfert galaxy | Low-L NLRG | ||
| LERG | ||||
| Starburst | [W1]−[W2]< 0.5; [W2]−[W3]≥3.4 | Starburst galaxy | Star formation | Star formation |
| ULIRG | Seyfert galaxy | Low-L NLRG | ||
| AGN/QSO | [W1]−[W2]≥0.5; [W2]−[W3]< 4.4 | AGN | Luminous Seyfert galaxy | NLRG |
| BL-Lac | BLRG | |||
| QSO | QSO | |||
Notes. For each of our source types, selected on the WISE color/color plot, this table shows the types of activity most likely to be found at each wavelength. For each color category, several combinations of the elements in columns 2-4 may be possible; for example, in the first group, an elliptical galaxy in a cluster, with a radiatively inefficient AGN in X-rays, and an LERG in radio. LINER stands for low-ionization nuclear emission-line region. ULIRG stands for ultraluminous infrared galaxy. QSO stands for quasars. LERG stands for low-excitation radio galaxy; high-excitation sources (HERG) include NLRG (narrow-line radio galaxies), and BLRG (broad-line radio galaxies).
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