An optical polarization survey of the Palomar-Green bright quasar sample

Details An optical polarization survey of the Palomar-Green bright quasar sample An optical polarization survey of the Palomar-Green bright quasar sample

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apjs...74..869b&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 74, Dec. 1990, p. 869-883.

Astronomy and Astrophysics

Astronomy

97

Optical Polarization, Quasars, Radio Emission, Sky Surveys (Astronomy), Active Galactic Nuclei, Polarization Characteristics, Seyfert Galaxies

Scientific paper

An optical polarization survey of the entire Palomar-Green Bright Quasar Survey reveals a distribution which is peaked near a null value, has a mean polarization of 0.5 percent, and extends to a maximum value of only 2.5 percent. There is a total absence of objects exhibiting blazarlike properties. What weak optical polarization is present in a typical QSO does not share the properties generally attributed to synchrotron emission from the nuclei of galaxies. Possible mechanisms accounting for these findings are considered.

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