Program: GN-2005B-Q-61

The connection between supermassive black holes (SBH) and their host galaxies is investigated by extending the characterization of known scaling relations to a sample of four giant Low Surface Brightness Galaxies hosting Seyfert 1 nuclei. For each target, Gemini/GMOS-N spectra will allow us to estimate the mass of the central SBH, the bulge velocity dispersion, and the disk circular velocity on scales of tens of kiloparsecs. Because of the unique set of galactic properties spanned by our targets, our sample complements the existing sample of high surface brightness galaxies for which similar data are already in hand. We argue that the results of this project will be instrumental in interpreting the nature of the connection between the SBH, the bulge (through its velocity dispersion) and the surrounding dark matter halo (through the measured circular velocity) and have the potential to significantly advance our understanding of SBH formation and evolution.