Dark Matter Multi-Modalities in Elliptical Galaxies

Details Dark Matter Multi-Modalities in Elliptical Galaxies Dark Matter Multi-Modalities in Elliptical Galaxies

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21011408r&link_type=abstract

American Astronomical Society Meeting 210, #114.08; Bulletin of the American Astronomical Society, Vol. 39, p.240

Astronomy and Astrophysics

Astronomy

Scientific paper

We examine the dark matter properties of nearby elliptical galaxies, beginning with a uniformly-modeled SAURON data set. We find a bimodality of the central dark matter content between disky rotators and boxy non-rotators, and derive implications of this difference for the galaxy formation histories. We also present new planetary nebula and globular cluster kinematics data for the outer parts of ellipticals, using Keck-II+DEIMOS, WHT+PN.S, and Gemini-South+GMOS. These data confirm a massive dark halo in NGC 1407, and continue to show little evidence for dark matter in NGC 3379 and NGC 4697. Supported by FONDECYT Project 1070687.

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