In: Physics
What does the Schechter function describe? Describe the significance of each of the two fitting parameters. What does the de Vaucouleurs law describe? Describe the significance of each of the two fitting parameters.
Both these function are some of important functions used in astrophysics regarding the luminosity magnitude and brightness of astronomical objects. The Schechter luminosity function provides a parametric description of the space density of galaxies as a function of their luminosity.
isophoto - iso (same) phote ( Light ) - a line in a diagram/figure (connecting points) where the intensity of light is same.