Imaging polarimetry of high-redshift radio galaxies

Details Imaging polarimetry of high-redshift radio galaxies Imaging polarimetry of high-redshift radio galaxies

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...404..584d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 404, no. 2, p. 584-592.

Astronomy and Astrophysics

Astrophysics

50

Astronomical Polarimetry, Imaging Techniques, Radio Galaxies, Linear Polarization, Radio Emission, Red Shift, Ultraviolet Emission

Scientific paper

We present the results of imaging polarimetry of six high-redshift radio galaxies. Four of them show high linear polarization in their rest frame ultraviolet radiation around 3000 A with the E vector perpendicular to the radio/optical axis. In the only galaxy which is well resolved, the polarization is stronger in the extended structure than in the nuclear regions. These results are evidence for a significant nonstellar extended component in the ultraviolet band and are well explained by the hypothesis that this component is nuclear light which is emitted anisotropically and is scattered into our line of sight by the interstellar medium of the host galaxy.

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