Describing the radial profile of light in a galaxyWe can also display this information in the form of a graph. Now, there are many possibilities for making a graph. We can use linear units for both intensity and distance from the center: ... or we may choose to use logarithmic units for intensity -- if we used magnitudes, for example -- which can yield a very different profile shape: ... or we may choose to use logarithmic units for BOTH intensit
