Total Galaxy Magnitudes and Effective Radii from Petrosian Magnitudes and Radii
Total Galaxy Magnitudes and Effective Radii from Petrosian Magnitudes and Radii
Petrosian magnitudes were designed to help with the difficult task of determining a galaxy's total light. Although these magnitudes (taken here as the flux within 2R_P, with the inverted Petrosian index 1/eta(R_P)=0.2) can represent most of an object's flux, they do of course miss the light outside of the Petrosian …