Multi-wavelength polarization VLBI observations of two BL Lac objects

Vladislavs Bezrukovs; Denise Gabuzda

Multi-wavelength polarization VLBI observations of two BL Lac objects

Vladislavs Bezrukovs
, Denise Gabuzda

Munster Technological University
University College Cork

Research output: Contribution to journal › Conference article › peer-review

Abstract

We present results of intensity and linear polarization imaging and model fitting for two sources based on VLBA observations for a sample of 1-Jy northern BL Lac objects. Observations were carried out in August 2004 at 43, 22 and 15 GHz. The observed polarization vectors in the jets are aligned with the jet, implying the presence of transverse magnetic fields. We confirm the presence of a transverse Faraday rotation gradient across the jet of 1803+784, providing evidence that this jet has a helical magnetic field.

Original language	English
Article number	027
Journal	Proceedings of Science
Volume	36
Publication status	Published - 2006
Externally published	Yes
Event	8th European VLBI Network Symposium, EVN 2006 - Torun, Poland Duration: 26 Sept 2006 → 29 Sept 2006

Cite this

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title = "Multi-wavelength polarization VLBI observations of two BL Lac objects",

abstract = "We present results of intensity and linear polarization imaging and model fitting for two sources based on VLBA observations for a sample of 1-Jy northern BL Lac objects. Observations were carried out in August 2004 at 43, 22 and 15 GHz. The observed polarization vectors in the jets are aligned with the jet, implying the presence of transverse magnetic fields. We confirm the presence of a transverse Faraday rotation gradient across the jet of 1803+784, providing evidence that this jet has a helical magnetic field.",

author = "Vladislavs Bezrukovs and Denise Gabuzda",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 8th European VLBI Network Symposium, EVN 2006 ; Conference date: 26-09-2006 Through 29-09-2006",

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T1 - Multi-wavelength polarization VLBI observations of two BL Lac objects

AU - Bezrukovs, Vladislavs

AU - Gabuzda, Denise

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

PY - 2006

Y1 - 2006

N2 - We present results of intensity and linear polarization imaging and model fitting for two sources based on VLBA observations for a sample of 1-Jy northern BL Lac objects. Observations were carried out in August 2004 at 43, 22 and 15 GHz. The observed polarization vectors in the jets are aligned with the jet, implying the presence of transverse magnetic fields. We confirm the presence of a transverse Faraday rotation gradient across the jet of 1803+784, providing evidence that this jet has a helical magnetic field.

AB - We present results of intensity and linear polarization imaging and model fitting for two sources based on VLBA observations for a sample of 1-Jy northern BL Lac objects. Observations were carried out in August 2004 at 43, 22 and 15 GHz. The observed polarization vectors in the jets are aligned with the jet, implying the presence of transverse magnetic fields. We confirm the presence of a transverse Faraday rotation gradient across the jet of 1803+784, providing evidence that this jet has a helical magnetic field.

UR - https://www.scopus.com/pages/publications/85055526557

M3 - Conference article

AN - SCOPUS:85055526557

SN - 1824-8039

VL - 36

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 027

T2 - 8th European VLBI Network Symposium, EVN 2006

Y2 - 26 September 2006 through 29 September 2006

ER -

Multi-wavelength polarization VLBI observations of two BL Lac objects

Abstract

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