Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982natur.299..605a&link_type=abstract
Nature, vol. 299, Oct. 14, 1982, p. 605, 606.
Astronomy and Astrophysics
Astronomy
41
Emission Spectra, Optical Polarization, Quasars, Radio Astronomy, Radio Galaxies, Line Spectra, Polarimetry
Scientific paper
Optical spectropolarimetry data and VLA radio maps for a sample of radio galaxies are presented as part of an effort to identify and interpret optical polarization position angle alignment with large scale radio structure in low polarization quasars. Broadband polarizations were produced by integration of the spectropolarimetry data, with the objects chosen for properties of brightness and emission-line strength. Absolute values of the difference between the position angle of optical polarization and that of the large scale radio structure are provided. The results indicated that radio galaxies with optical nuclear emission are polarized. One population was found which displayed quasar alignment, and another was observed with a perpendicular relationship. The polarization arose from a scattering or dust transmission effect.
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