Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...343..158t&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 343, Aug. 1, 1989, p. 158-168.
Astronomy and Astrophysics
Astronomy
81
Active Galactic Nuclei, Infrared Astronomy, Infrared Imagery, Near Infrared Radiation, Seyfert Galaxies, Star Formation, Barred Galaxies, Emission Spectra, Infrared Spectra, Interstellar Matter, Molecular Clouds
Scientific paper
Consideration is given to differences in images of the core of the Seyfert galaxy NGC 1068 at different wavelength regimes dominated by stellar photospheric emission. A stellar bar is observed at 1.6 and 2.2 microns, but not at shorter visual wavelength observations. Two explanations for these differences are examined: substantial stellar population variations with position and the effects of dust obscuration. The relation of the bar to active star formation is discussed. The mass of the central disk and bar is estimated at 2-3 X 10 to the 10th solar masses. It is found that the rate of star formation (100 solar masses/yr) is due to a large mass of molecular gas.
Greenhouse Matthew
Harper Doyal A.
Hereld Mark
Johnson Paul
Majewski Steven
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