1997/12/11 by F. Combes, Combes, F., Paris Observatory +1
Engineering · Physics and Astronomy · #Astrophysics (astro-ph) #Extraction and Separation Processes #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9712147
8 pages, 2 figures, to be published in Proceedings of "Abundance profiles: Diagnostic Tools for Galaxy History", 12-15 October 1997, Quebec, Canada, ed. D. Friedli, M.G. Edmunds, C. Robert, L. Drissen, ASP conf series
arxiv created 1997/12/11 · openalex publication_date 1997/12/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Galaxy interactions produce strong torques that generate radial gas flows. There are two opposite tendencies of these flows, regarding abundance gradients: homogeneization and gradient flattening, and enhanced star formation in the center, and gradient steepening. Mechanisms to create abundance gradients are discussed, and comparison with observations is detailed, concerning spirals (such as collisional rings, starbursts..) or ellipticals (formed or not in mergers). A review of N-body simulations predictions, taken into account star formation, is also presented.