Is there a dichotomy in the Dark Matter as well as in the Baryonic Matter properties of ellipticals?

5); A.J. Romanowsky (4); Groningen; (2) INAF-Osservatorio Astronomico di Capodimonte; K.C. Freeman (6) ((1) Kapteyn Institute; K. Kuijken (1; M. Arnaboldi (3); M. Capaccioli (2); M.R. Merrifield (4); Mt. Stromlo Observatory); Naples; (3) INAF- Osservatorio Astronomico di Pino Torinese

arxiv: astro-ph/0310798 · v1 · submitted 2003-10-28 · 🌌 astro-ph

Is there a dichotomy in the Dark Matter as well as in the Baryonic Matter properties of ellipticals?

N.R. Napolitano (1) , M. Capaccioli (2) , M. Arnaboldi (3) , M.R. Merrifield (4) , N.G. Douglas (1) , K. Kuijken (1 , 5) , A.J. Romanowsky (4)

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K.C. Freeman (6) ((1) Kapteyn Institute Groningen; (2) INAF-Osservatorio Astronomico di Capodimonte Naples; (3) INAF- Osservatorio Astronomico di Pino Torinese Turin; (4) School of Physics & Astronomy University of Nottingham; (5) University of Leiden; (6) RSAA Mt. Stromlo Observatory)

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keywords matterbaryoniccorrelationdarktherebetwencomponentcomponents

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We have found a correlation betwen the M/L global gradients and the structural parameters of the luminous components of a sample of 19 early-type galaxies. Such a correlation supports the hypothesis that there is a connection between the dark matter content and the evolution of the baryonic component in such systems.

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Is there a dichotomy in the Dark Matter as well as in the Baryonic Matter properties of ellipticals?

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