Astronomy and Astrophysics – Astronomy
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003mnras.341..747b&link_type=abstract
Monthly Notice of the Royal Astronomical Society, Volume 341, Issue 3, pp. 747-759.
Astronomy and Astrophysics
Astronomy
13
Galaxies: Elliptical And Lenticular, Cd, Galaxies: Evolution, Galaxies: Photometry
Scientific paper
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 Sérsic form, we find that a significant bias is introduced if the de Vaucouleurs law is not a good description of the actual light profile.
Bothun Greg
Brodie Jean P.
Brown Richard J. N.
Forbes Duncan A.
Goudfrooij Paul
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