Publications of The Korean Astronomical Society (천문학논총)

The Korean Astronomical Society (한국천문학회)
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VRI SURFACE PHOTOMETRY OF THE SPIRAL GALAXIES NGC 531, NGC 536, AND NGC 542 IN HCG10

HCG10에 속한 나선은하 NGC 531, NGC 536, NGC 542의 VRI CCD 표면측광

  • SONG WOO-MI (Department of Earth Sciences, Pusan National University) ;
  • ANN HONG BAE (Department of Earth Sciences, Pusan National University)
  • Published : 1999.11.01
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Abstract

We performed VRI CCD surface photometry of three spiral galaxies of HCG10 in order to understand the effect of interactions in the compact group. The morphology of the largest member NGC 536 seems to be normal but its bulge is thought to be of an oblate spheroid. The central surface brightness of the disk of NGC 536 is much fainter than that of disks of nearby spiral galaxies. The morphologies of NGC 531 and NGG 542 appear to be affected by interactions which lead to a warped disk in NGC 531 and a slightly bent disk in NGC 542. NGC 531 have a boxy bulge and a Freeman Type II disk both of which strongly suggest the presence of a bar in the galaxy. There is a break in the slope of the luminosity profile of NGC 542 which is dominated by the disk component.

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