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The Near-Infrared Surface Brightness Distribution of NGC4696

P. Arnalte Mur·S. C. Ellis·Matthew Colless
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Abstract

We present H-band observations of the elliptical galaxy NGC4696, the brightest member of the Centaurus cluster of galaxies. We have measured its light profile, using a two-dimensional fitting algorithm, out to a radius of 180 arcsec (37 h^{-1}_{70} kpc). The profile is well described by a de Vaucouleurs law, with an effective radius of 35.3 +/- 1.0 h^{-1}_{70} kpc. There is no need for the extra free parameter allowed by a Sersic law. Allowing for a variation of 0.3% in the sky level, the profile obtained is compatible with data from 2MASS. The profile shows no sign of either a truncation or an extended halo.

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P. Arnalte Mur, S. C. Ellis, Matthew Colless. 2006-01-29. The Near-Infrared Surface Brightness Distribution of NGC4696. https://doi.org/10.1071/as05037

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