{ "id": "astro-ph/9910275", "version": "v1", "published": "1999-10-14T19:23:32.000Z", "updated": "1999-10-14T19:23:32.000Z", "title": "Nuclear Brightness Profiles of Merger Remnants: Constraints on the Formation of Ellipticals by Mergers", "authors": [ "R. P. van der Marel", "D. Zurek" ], "comment": "To appear in the proceedings of \"Galaxy Dynamics: from the Early Universe to the Present\", eds. F. Combes, G.A. Mamon and V. Charmandaris, ASP Conference Series; 4 pages, LaTeX with 2 PostScript figures, newpasp.sty included", "categories": [ "astro-ph" ], "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.", "revisions": [ { "version": "v1", "updated": "1999-10-14T19:23:32.000Z" } ], "analyses": { "keywords": [ "nuclear brightness profiles", "constraints", "unusually high luminosity density", "image merger remnants", "elliptical" ], "tags": [ "conference paper" ], "note": { "typesetting": "LaTeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "inspire": 519821 } } }