Hubble Space Telescope Observations of the CFA Seyfert 2 Galaxies: The Fueling of Active Galactic Nuclei

摘要: We present an investigation of possible fueling mechanisms operating in the inner kiloparsec Seyfert galaxies. analyze visible and near-infrared Hubble Space Telescope images 24 2 galaxies from CfA Redshift Survey sample. In particular, we are searching for morphological signatures dynamical processes responsible transporting gas scales into nucleus. The circum- nuclear regions very rich dust, often taking form spiral dust lanes on a few hundred parsecs. While these spirals found 20 our galaxies, —nd only —ve bars among entire sample, strongly reinforcing conclusions other investiga- tors that not primary means this material An esti- mate density spirals, based extinction measurements, suggests probably shocks disks self-gravitating. Since can dissipate energy angular momentum, may be channels by which host galaxy is being fed central engines.