The role of the host galaxy kinematics on nuclear activity

Details The role of the host galaxy kinematics on nuclear activity The role of the host galaxy kinematics on nuclear activity

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008an....329..908d&link_type=abstract

Astronomische Nachrichten, Vol.329, Issue , p.908

Astronomy and Astrophysics

Astronomy

Galaxies: Active, Galaxies: Kinematics And Dynamics, Galaxies: Seyfert, Ism: Kinematics And Dynamics, Stars: Kinematics

Scientific paper

We investigate the kinematic properties of the stars and ionised gas in the circumnuclear regions of a matched sample of nearby Seyfert and non-active galaxies, using the SAURON Integral-Field Unit (IFU) on the William Herschel Telescope (WHT). In both active and non-active galaxies, the stellar velocity fields present regular rotation patterns. After removal of the non-gravitational components due to nuclear activity (e.g., AGN-driven outflows) in the case of the Seyfert galaxies, the ionised gas kinematics in both populations is dominated by rotation. The non-active galaxies present a global alignment between stellar and gaseous kinematics while majority of Seyfert galaxies present strong kinematics misalignments between the two components. A more refined analysis of our two-dimensional kinematics maps reveal evidence for deviations from axial-symmetry in the gaseous velocity fields. These deviations are moreover stronger in the case of Seyfert galaxies than their associated non-active galaxies. This result suggests the presence of weak dynamical perturbations in the circumnuclear regions of Seyfert galaxies and provides a tentative link between nuclear activity and the host galaxy dynamics in these regions.

Affiliated with

Also associated with

No associations

Rating

The role of the host galaxy kinematics on nuclear activity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The role of the host galaxy kinematics on nuclear activity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The role of the host galaxy kinematics on nuclear activity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1101505