Stellar Velocity Field in the Central Region of NGC 1068 |
| |
Authors: | B Garcia-Lorenzo E Mediavilla S Arribas C Del Burgo |
| |
Institution: | (1) Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife Canary Islands, Spain |
| |
Abstract: | We present the velocity field of the stars in the central 25″ × 22″ of NGC 1068 derived from 2-D spectroscopy of the Ca II
triplet. A preliminary analysis provides evidence for two distinct stellar systems in the centre of NGC 1068. In the outer
regions (say r > 10″), the mean stellar velocity field seems coupled to those of the ionized and molecular gas, indicating
aproximately regular rotation with the kinematic minor axis at PA ~ 0°. However, in the inner region, the stars are rotating,
whereas the ionized gas is outflowing in the NE-SW direction probably due to the effects of the nuclear activity, and the
molecular gas is responding to the bar potential.
This revised version was published online in July 2006 with corrections to the Cover Date. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|