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20 April 2024

» arxiv » astro-ph/9910275

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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 ;
Date:	14 Oct 1999
Subject:	astro-ph
Affiliation:	STScI, Baltimore
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.
Source:	arXiv, astro-ph/9910275
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