The forbidden O III electron temperature and density structure in the nucleus of NGC 1068

Details The forbidden O III electron temperature and density structure in the nucleus of NGC 1068 The forbidden O III electron temperature and density structure in the nucleus of NGC 1068

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...123..101w&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 123, no. 1, June 1983, p. 101-106.

Astronomy and Astrophysics

Astrophysics

2

Astronomical Spectroscopy, Electron Density (Concentration), Electron Energy, Galactic Nuclei, Oxygen Spectra, Seyfert Galaxies, Data Reduction, H Gamma Line, Spiral Galaxies

Scientific paper

The [O III] 5007 and 4363 Å emission lines from the Seyfert nucleus of NGC 1068 have been observed at a resolution of ≡60 km s-1 in order to determine the [O III] (5007+4959)/4363 Å electron temperature-density sensitive ratio. Gaussian fitting of the [O III] 5007 and 4363 Å profiles provides this ratio for eight resolved components. The very broad (FWHM ≡ 1800 km s-1) component, first reported by Pelat and Alloin (1980), is confirmed and appears to be composed of material of electron density in the range 9×104 to 5×105 cm-3, if the electron temperature is ≡15,000K.

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