The ISO LWS spectrum of the Seyfert galaxy NGC 1068

Details The ISO LWS spectrum of the Seyfert galaxy NGC 1068 The ISO LWS spectrum of the Seyfert galaxy NGC 1068

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999esasp.427..969s&link_type=abstract

The Universe as Seen by ISO. Eds. P. Cox & M. F. Kessler. ESA-SP 427., p. 969

Physics

2

Infrared: Galaxies, Lines, Galaxies: Seyfert, Active Nuclei, Starburst, Ism, Galaxies: Individual: Ngc1068, Photoionization Models, Ism: Molecules

Scientific paper

The prototypical Seyfert type 2 galaxy NGC 1068 has been observed with the LWS (Long Wavelength Spectrometer) on board the ISO (Infrared Space Observatory, ESA) satellite from 43 to 197μm. All the expected ionic fine structure lines have been detected. Also present are OH rotational lines in emission, at 79, 119 and 163 μm. The ionic line intensities and ratios in NGC 1068 are discussed in the context of photoionization models of nonthermal (AGN) and thermal (starburst) origin and photodissociation regions models of the host-galaxy interstellar medium. Emission in the low-lying rotational lines of OH seems to be due to rotational or ro-vibrational radiative pumping in an optically thick layer illuminated by a warm continuum source.

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