On VI Emission in Nuclear Region of NGC 1068
Abstract
FUSE Spectra of the nuclear region of NGC 1068 find strong OVI emission consisting of a pair of narrow and broad components. There is a gradient in the velocity field for the narrow O VI component of ~200 kms-1 from ~2'' southwest of the nucleus to ~4'' northeast. A similar pattern is also observed with the broad O VI component, with a gradient of ~3000 kms-1. These results are consistent with the HST/STIS findings and suggest a biconical structure in which the velocity field is mainly radial outflow.
- Publication:
-
Future Directions in Ultraviolet Spectroscopy: A Conference Inspired by the Accomplishments of the Far Ultraviolet Spectroscopic Explorer Mission
- Pub Date:
- May 2009
- DOI:
- 10.1063/1.3154085
- Bibcode:
- 2009AIPC.1135...52Z
- Keywords:
-
- 98.54.-h;
- 32.80.Fb;
- 95.80.+p;
- Quasars;
- active or peculiar galaxies objects and systems;
- Photoionization of atoms and ions;
- Astronomical catalogs atlases sky surveys databases retrieval systems archives etc.