Central dark matter density cuspiness in low surface brightness galaxies: a stellar kinematics approach

We present preliminary results from spectroscopic observations of a sample of 11 low surface brightness galaxies (LSBs). 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 are more regular than the ionized gas kinematics, which often show evidence for non-circular and asymmetric motions.