Outflows and Fueling Flows in the Seyfert 2 Galaxy Mrk 3

Crenshaw, D. Michael; Kraemer, S.; Schmitt, H.; Jaffe, Y.; Deo, R.; Collins, N.; Fischer, T.


We present a study of the resolved emission-line regions and an inner dust/gas disk in the Seyfert 2 galaxy Mrk 3, based on Hubble Space Telescope observations. We show that the extended narrow-line region (ENLR), spanning 4 kpc, is defined by the intersection of the ionizing bicone of radiation from the AGN and the inner disk, which is not coplanar with the large-scale stellar disk. This intersection leads to different position and opening angles of the ENLR compared to the narrow-line region (NLR). A number of emission-line arcs in the ENLR appear to be continuations of dust lanes in the disk, supporting this geometry. The NLR, which consists of outflowing emission-line knots spanning the central 650 pc, is in the shape of a backwards S. This may arise from rotation of the gas, or it may trace the original fueling flow to the nucleus that was ionized after the AGN turned on.

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Fecha de publicación: 2010