Cold Dark Matter Cusps in Low Surface Brightness Galaxies by Means of Stellar Kinematics

Details Cold Dark Matter Cusps in Low Surface Brightness Galaxies by Means of Stellar Kinematics Cold Dark Matter Cusps in Low Surface Brightness Galaxies by Means of Stellar Kinematics

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..396..449p&link_type=abstract

Formation and Evolution of Galaxy Disks ASP Conference Series, Vol. 396, Proceedings of the conference held 1-5 October, 2007 at

Astronomy and Astrophysics

Astronomy

Scientific paper

A sample of galaxies characterized by a low surface brightness disk has dynamically studied using, as tracer, the stellar component. The kinematical data, taken along the major and minor axis, extend well within the disk region. The stellar kinematics is more regular and symmetric than the ionized-gas kinematics. Moreover, when comparing the circular velocity derived by means of the dynamical mass model and the one measured from the ionized-gas we find that the later is characterized by a shallower velocity gradient in the central regions.

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