Probing the Disk-Wind Connection in the Seyfert Galaxy NGC 4151

Details Probing the Disk-Wind Connection in the Seyfert Galaxy NGC 4151 Probing the Disk-Wind Connection in the Seyfert Galaxy NGC 4151

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2211k&link_type=abstract

Chandra Proposal ID #08700618

Physics

Chandra Proposal Id #08700618

Scientific paper

Recent X-ray observations of NGC 4151 have revealed dramatic changes in the X-ray absorption due to bulk motion of the gas across our line-of-sight. We determined that a component of this gas has a transverse velocity > 1250 km/sec and, based on photo-ionization models, must lie ~ 0.1 pc from the central. This suggests that the absorber arises in a disk-driven wind, making NGC 4151 the only Seyfert 1 to have shown direct evidence of this phenomenon. However, the connection between this component and the high column density gas responsible for most of the X-ray absorption is unknown. We request 2 Chandra/HETG observations, of 50 ksec each, to follow our two cycle 5 XMM observations, to monitor changes in the absorbers, constrain their physical conditions, and probe the disk-wind connection.

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