Contents
Definition
Look up the formal definition (Kron 1980).
Measured for all objects:
- Kron Radius determined from smoothed image
- start with isophotal aperture at sky level
- measure moments
- redefine aperture to be 6x 1st radial moment
- re-measure moments
- do we iterate like this again - not sure?
- Kron flux is measured inside 2.5 * 1st radial moment
- 1.0 * 1st radial moment and 4.0 * 1st radial moment fluxes are also measured as KRON_INNER and KRON_OUTER (don't make it into PSPS though, only in cmfs)