Nearly simultaneous very long baseline interferometry and optical polarimetry of blazars

Details Nearly simultaneous very long baseline interferometry and optical polarimetry of blazars Nearly simultaneous very long baseline interferometry and optical polarimetry of blazars

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aj....107..884g&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 107, no. 3, p. 884-891

Astronomy and Astrophysics

Astronomy

26

Astronomical Polarimetry, Bl Lacertae Objects, Blazars, Light Emission, Polarization Characteristics, Quasars, Radio Astronomy, Radio Emission, Spatial Marching, Very Long Base Interferometry, Astronomical Observatories, Polarimeters, Radio Antennas, Radio Telescopes

Scientific paper

One of the most promising approaches to unraveling the relationship between the optical and radio emission in Active Galactic Nuclei (AGN) is to obtain nearly simultaneous optical polarization and Very Long Baseline Interferometry (VLBI) polarization data. We have obtained such data for five blazars (0735+178, OJ 287, 1219+285, 3C 279, and BL Lac) during a number of lambda = 6 cm VLBI polarization runs. In each of these five sources, we find evidence for a correlation between the optical polarization position angle and the radio polarization position angle in either the VLBI core or the VLBI jet, usually in the VLBI core. Such results indicate that the optical and radio polarized emission are linked to a much greater extent than has been expected and are most likely cospatial. Preliminary evidence suggests that frequently the optical polarization is associated with emergence of new VLBI components.

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