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.
Referencia bibliográfica

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

Fecha de publicación:
2
1997
Revista
Astrophysics and Space Science
Número de autores
4
Número de autores del IAC
4
Número de citas
1
Número de citas referidas
1
Descripción
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.
Tipo
Con árbitro

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