On the orientation of magnetic fields in extragalactic radiosources

Details On the orientation of magnetic fields in extragalactic radiosources On the orientation of magnetic fields in extragalactic radiosources

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26at...20..291a&link_type=abstract

Astronomical and Astrophysical Transactions, vol. 20, Issue 2, pp.291-294

Astronomy and Astrophysics

Astronomy

Extragalactic Radiosources, Magnetic Field, Radio Polarization

Scientific paper

We studied the relative orientation of position angles of the integrated intrinsic radio polarization (perpendicular to the intrinsic direction of the magnetic field) and the major axes of extragalactic radiosources for different types of radiosources, classified by their elongation (Andreasyan and Sol, 1999) and also according to their Fanaroff-Riley (FR) type. We considered data for about 300 extragalactic radiosources and found that there are large differences in relative orientations for different types of radiosources. The directions of integrated intrinsic magnetic fields are correlated with major radio axes for the more elongated sources (with a ratio of major to minor radio axes larger than 2.5) and for FRII radiosources, while they appear not correlated with radio axes for stocky and for FRI-type radiosources.

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