Central DM density cuspiness in LSB's: a stellar kinematics approach

Conference item

We present preliminary results from spectroscopic observations of a sample of 11 low surface brightness galaxies (LSB). We measured the stellar and gaseous kinematics along their major and minor axes. Such information will allow us to accurately investigate the dark matter (DM) content within their optical regions, providing further constraints on the predictions of standard CDM models. Although dynamical modeling is still in progress, our observations already show that the derived stellar kinematics is more regular than the ionized gas one, which often shows evidence for non-circular and asymmetric motions.

Authors: Pizzella, A; Corsini, E; Bertola, F; Coccato, L; Magorrian, J

• Publication status: Published
• Journal: DARK MATTER IN GALAXIES
• Issue: 220
• Pages: 337-338
• Publication date: 2004-01-01
• Event title: 220th Symposium of the International-Astronomical-Union on Dark Matter in Galaxies held at the 25th IAU General Assembly
• ISSN: 0074-1809
• ISBN: 1583811672