Two-dimensional Galaxy Image Decomposition | Zendy

Yogesh Wadadekar | Zendy; Braxton Robbason | Zendy; Ajit Kembhavi | Zendy

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Two-dimensional Galaxy Image Decomposition

Author(s) -

Yogesh Wadadekar,

Braxton Robbason,

Ajit Kembhavi

Publication year - 1999

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/300754

Subject(s) - astrophysics , interacting galaxy , galaxy , bulge , physics , lenticular galaxy , galaxy merger , point (geometry) , set (abstract data type) , galaxy formation and evolution , computer science , mathematics , geometry , programming language

We propose a two dimensional galaxy fitting algorithm to extract parametersof the bulge, disk, and a central point source from broad band images ofgalaxies. We use a set of realistic galaxy parameters to construct a largenumber of model galaxy images which we then use as input to our galaxy fittingprogram to test it. We find that our approach recovers all structuralparameters to a fair degree of accuracy. We elucidate our procedures byextracting parameters for 3 real galaxies -- NGC 661, NGC 1381, and NGC 1427.Comment: 23 pages, LaTeX, AASTEX macros used, 7 Postscript figures, submitted to Ap

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