Using Hubble Space Telescope Imaging of Nuclear Dust Morphology to Rule Out Bars Fueling Seyfert Nuclei

摘要: If active galactic nuclei (AGN) are powered by the accretion of matter onto massive black holes, how does gas in host galaxy lose required angular momentum to approach hole? Gas easily transfers stars strong bars, making them likely candidates. Although ground-based searches for bars galaxies using both optical and near-infrared surface brightness have not found any excess relative quiescent galaxies, been able rule out small-scale nuclear bars. To look these we use Hubble Space Telescope Wide Field Planetary Camera 2 Near Infrared Multi-Object Spectrometer color maps search straight dust lane signature Of twelve Seyfert our sample, only three lanes consistent with a bar. Therefore, cannot be primary fueling mechanism nuclei. We do find that majority show an spiral morphology their lanes. These arms may possible mechanism.