The Structure of Galaxies: I. Surface Photometry Techniques
James Schombert (Dept. of Physics, Univ. of Oregon), Anna K. Smith, (Dept. of Physics, Univ. of Oregon)
TL;DR
This paper introduces surface photometry techniques applied to galaxy data from the 2MASS survey, detailing methods, data reliability, and data products for analyzing galaxy structures across various types.
Contribution
It presents a comprehensive outline of surface photometry techniques, data processing, and calibration methods for galaxy analysis using the 2MASS database.
Findings
Established reliable surface photometry procedures
Created a transparent data storage scheme
Produced initial galaxy surface brightness profiles
Abstract
This project uses the 2MASS all-sky image database to study the structure of galaxies over a range of luminosities, sizes and morphological types. This first paper in this series will outline the techniques, reliability and data products to our surface photometry program. Our program will analyze all acceptable galaxies (meeting our criteria for isolation from companions and bright stars) from the Revised Shapley-Ames and Uppsala galaxy catalogs. Resulting photometry and surface brightness profiles are released using a transparent scheme of data storage which includes not only all the processed data but knowledge of the processing steps and calibrating parameters.
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