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4. Surface Photometry and Standard Calibration

4.1 Surface Photometry
- 4.1.1 Finding and Classifying Objects
- 4.1.2 Fitting of Ellipses
4.2 Determination of Magnitudes
- 4.2.1 Determination of the Sky Background Level
- 4.2.2 Determination of Magnitudes
4.3 Non-photometric Corrections and Standard Calibration
4.4 Internal Comparison of Photometry
- 4.4.1 Comparison of Aperture Magnitudes
- 4.4.2 Comparison of Surface Brightness Profiles
4.5 External Comparison of Photometry
- 4.5.1 Comparison of Aperture Magnitudes
- 4.5.2 Comparison of Surface Brightness Profiles

Properties of E and S0 Galaxies in the Clusters HydraI and Coma
Master's Thesis, University of Copenhagen, July 1997

Bo Milvang-Jensen (milvang@astro.ku.dk)