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Nuclear Brightness Profiles of Merger Remnants: Constraints on the Formation of Ellipticals by Mergers

R. P. van der Marel·D. Zurek
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Abstract

We present preliminary results of an HST/NICMOS program to image merger remnants in the J, H and K bands. The nuclear brightness profiles for most sample galaxies are similar to those typical for elliptical galaxies, but some (including the well-studied NGC 3921 and 7252) have an unusually high luminosity density at small radii. This is consistent with the prediction of N-body simulations that gas flows to the center during a merger and forms new stars.

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R. P. van der Marel, D. Zurek. 1999-10-14. Nuclear Brightness Profiles of Merger Remnants: Constraints on the Formation of Ellipticals by Mergers. https://arxiv.org/abs/astro-ph/9910275

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