The composite galaxy NGC 6764 - Nuclear activity and circumnuclear star formation

Details The composite galaxy NGC 6764 - Nuclear activity and circumnuclear star formation The composite galaxy NGC 6764 - Nuclear activity and circumnuclear star formation

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.163..201b&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 163, no. 2, Jan. 1990, p. 201-210.

Astronomy and Astrophysics

Astrophysics

6

Forbidden Transitions, Galactic Nuclei, Interacting Galaxies, Optical Emission Spectroscopy, Star Formation, Hot Stars, Interstellar Chemistry, Oxygen Spectra, Visible Spectrum

Scientific paper

The kinematics and ionization mechanism of the innermost arcsec of the nucleus of NGC 6764 are investigated using spatially-resolved optical spectra. The observed radial variations of the emission line ratios cannot be explained by a single-ionizing agent, but are consistent with circumnuclear ionization by hot stars in addition to a central power-law source. It is concluded that NGC 6764 is a composite galactic nucleus.

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