Infrared photometry and polarimetry of NGC 1068

Details Infrared photometry and polarimetry of NGC 1068 Infrared photometry and polarimetry of NGC 1068

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...222...95l&link_type=abstract

Astrophysical Journal, Part 1, vol. 222, May 15, 1978, p. 95-99. NSF-supported research.

Astronomy and Astrophysics

Astronomy

38

Astronomical Photometry, Galactic Nuclei, Infrared Astronomy, Infrared Photometry, Polarimetry, Seyfert Galaxies, Emission Spectra, Near Infrared Radiation, Optical Thickness, Silicates

Scientific paper

Narrow-band 20 micron data show the presence in NGC 1068 of a silicate emission feature peaked at 19 microns. This feature as well as the 5-34 micron spectrum are in accord with the Jones et al (1977) model assuming emission by heated dust. The nucleus of NGC 1068 is strongly polarized in the near-infrared, and the polarization and a position angle rotation decrease as the wavelength increases. It is suggested that the near-infrared spectrum and polarization arise from a heavily obscured polarized power-law source, and that this source is so heavily obscured that it is probably not observable at wavelengths shorter than one micron.

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