The photometric and geometric analysis of galaxy pair KPG 578

Abstract

We have presented BVR surface photometry and geometric analyses for galaxy pair KPG 578 a, b (NGC 7537, NGC 7541). The contour maps, BVR surface brightness profiles (SB) and geometric profiles (x c , y c , PA and Ellip = 1 − b/a) have been used for each galaxy in the pair. The galaxy pair KPG 578 is an intermediate pair with projected separation = − r 35.4 h kpc p 70 1 and relative velocity = v Δ 15 km/s. The total orbital mass of KPG 578 is determined to be = ⊙ M x M 6. 03 10 t 9