NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-03-20 T14:17:27 PDT
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For refcode 2003MNRAS.341..747B:
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Copyright by Royal Astronomical Society. 2003MNRAS.341..747B Near-infrared imaging of ellipticals: surface brightness profiles and photometry Brown, Richard J. N.; Forbes, Duncan A.; Silva, D.; Helsdon, Stephen F.; Ponman, T. J.; Hau, G. K. T.; Brodie, Jean P.; Goudfrooij, Paul; Bothun, G. Abstract. We present near-infrared K-band imaging of a large sample of candidate merger remnant galaxies and Hickson Compact Group ellipticals. We derive light profile indices, effective radii and surface brightnesses, as well as total K-band magnitudes. We find that the light distributions of the merger remnant candidates are consistent with those of 'normal' ellipticals, and scatter around a mean profile index of (1/n) = 0.20. Many of our sample galaxies have surface brightness profiles that are not well described by a de Vaucouleurs law (1/n= 0.25), and we discuss the implications of this on the derived total magnitudes. Comparing the total K magnitudes calculated by extrapolating a de Vaucouleurs profile and those derived using a generalized Sersic form, we find that a significant bias is introduced if the de Vaucouleurs law is not a good description of the actual light profile. Keywords: galaxies: elliptical and lenticular, cD, galaxies: evolution, galaxies: photometry
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