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Astron. Astrophys. 325, 911-914 (1997)

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Arcsecond scale radio polarization of BL Lacertae objects

C. Stanghellini 1, D. Dallacasa 2, M. Bondi 2 and R. Della Ceca 3

1 Istituto di Radioastronomia del CNR, C.P. 141, I-96017 Noto SR, Italy
2 Istituto di Radioastronomia del CNR, Via Gobetti 101, I-40129 Bologna, Italy
3 Osservatorio Astronomico di Brera, Via Brera 28, I-20121 Milano, Italy

Received 10 October 1996 / Accepted 22 October 1996


We present deep VLA radio observations of six sources from the 1 Jy sample (Stickel et al. 1991) of radio selected BL Lac objects (RBL). The polarization properties of the extended emission of these objects are not consistent with those of the FR I radio galaxies (Fanaroff & Riley 1974) usually indicated as their "misaligned population".

Key words: polarization – BL Lacertae objects: general – radio continuum: galaxies

Send offprint requests to: C. Stanghellini

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© European Southern Observatory (ESO) 1997

Online publication: April 28, 1998