Imaging polarimetry of the high-z radio galaxy 3C368

Details Imaging polarimetry of the high-z radio galaxy 3C368 Imaging polarimetry of the high-z radio galaxy 3C368

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.243p...5s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 243, March 1, 1990, p. 5P-9P. Research supported by SER

Astronomy and Astrophysics

Astronomy

75

Polarimetry, Radio Galaxies, Reflection Nebulae, Active Galactic Nuclei, Linear Polarization, Polarized Light, Star Formation

Scientific paper

New optical polarization maps are presented which spatially resolve the elongated features of the high-z radio galaxy 3C368(z = 1.132). The observed levels of polarization in the extended regions (about 13 percent in the V waveband) and the pattern of vector orientations show that a component of the elongated structure is a giant reflection nebulosity, thus providing strong support for the beaming/scattering model for high-z radio galaxies in general. The observations also show significant dilution of the polarized light, with the level of polarization decreasing sharply between the V-band and no filter (peak 675 nm) observations, both in the nucleus and in the extended regions.

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