Abstract
Lenticular galaxy NGC3 has been chosen to study the surface photometry using griz filter. The data where obtained from the seventh Sloan Digital Sky Survey (SDSS) Data Release seven (DR7), and main the image reduction was done by the pipeline of SDSS. The work was achieved by the ELLIPS task from the STSDAS ISOPHOTE package in the Image Reduction and Analysis Facility (IRAF).The overall structure of the galaxy (a bulge, a bar, isophotal contour maps, together with a bulge to disk decomposition of the galaxy images where achieved, Also, the photometric properties (the disk position angle, ellipticity, B4 and inclination of the galaxy) where estimated.
Highlights
Surface photometry is one of the oldest techniques in the modern astronomy used to determine the surface brightness of extended objects such as galaxies and ionized hydrogen regions
NGC 3 known as ARAK 1, CGCG 40835, IRAS 00047+0801, MCG 1-1-37, PGC 565, UGC 58 according to HyperLEDA and NASA/ IPACK Extragalactic Database (NED)
We can conclude from the results, NGC 3 galaxy has a disky shape, with a bulge surrounded by a circular faint disk; it shows a symmetrical behavior with the various bands
Summary
Surface photometry is one of the oldest techniques in the modern astronomy used to determine the surface brightness of extended objects such as galaxies and ionized hydrogen regions. The radial profiles of galaxy’s surface brightness, ellipticity of the galaxy, position angle of the majoraxis and the parameter for isophotal shape (B4) can be determined after fitted the isophotal shape of the lenticular galaxy’s isophotes to ellipses. Surface photometric analysis was applied by fitting elliptical contours to each sky-subtracted galaxy image.
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