Stellar Velocity Field in the Central Region of NGC 1068

Bibcode
1997Ap&SS.248...43G
DOI
10.1023/A:1000576000419
Garcia-Lorenzo, B.; Mediavilla, E.; Arribas, S.; Del Burgo, C.
Bibliographical reference

Astrophysics and Space Science, Volume 248, Issue 1-2, pp. 43-49

Advertised on:
2
1997
Journal
Astrophysics and Space Science
Number of authors
4
IAC number of authors
4
Citations
1
Refereed citations
1
Description
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.
Type
Refereed

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