other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
2010MNRAS.402..819S - Mon. Not. R. Astron. Soc., 402, 819-835 (2010/February-3)
Feeding versus feedback in NGC4151 probed with Gemini NIFS - II. Kinematics.
STORCHI-BERGMANN T., SIMOES LOPES R.D., McGREGOR P.J., RIFFEL R.A., BECK T. and MARTINI P.
Abstract (from CDS):
There is no evidence in our data for the gradual acceleration followed by gradual deceleration proposed by previous modelling of the [OIII] emitting gas. Our data allow the possibility that the NLR clouds are accelerated close to the nucleus (within 0.1arcsec, which corresponds to ~7 pc at the galaxy) after which the flow moves at essentially constant velocity (~600km/s), being consistent with near-infrared emission arising predominantly from the interaction of the outflow with gas in the galactic disc.
The molecular gas exhibits distinct kinematics relative to the ionized gas. Its emission arises in extended regions approximately perpendicular to the axis of the bi-cone and along the axis of the galaxy's stellar bar, avoiding the innermost ionized regions. It does not show an outflowing component, being observed only at velocities very close to systemic, and is thus consistent with an origin in the galactic plane. This hot molecular gas may only be the tracer of a larger reservoir of colder gas which represents the AGN feeding.
Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS
Journal keyword(s): galaxies: active - galaxies: individual: NGC4151 - galaxies: jets - galaxies: kinematics and dynamics - galaxies: nuclei - galaxies: Seyfert
Simbad objects: 5
To bookmark this query, right click on this link: simbad:2010MNRAS.402..819S and select 'bookmark this link' or equivalent in the popup menu