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VLBA Polarimetry of GPS Quasar OQ172

Published online by Cambridge University Press:  21 February 2013

Y. Liu ,
D. R. Jiang  and
M. F. Gu
Y. Liu
Affiliation:
Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, China email: yliu@shao.ac.cn
D. R. Jiang
Affiliation:
Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, China email: yliu@shao.ac.cn
M. F. Gu
Affiliation:
Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, China email: yliu@shao.ac.cn
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Abstract

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We present a study of the VLBA polarimetry of GHz-Peaked Spectrum (GPS) quasar OQ172. GPS quasar OQ172 is one of the source with the extremely highest rest-frame rotation measure (RM > 20,000 rad/m2). By analyzed our of VLBA polarimetry observation, we found the Rotation Measure on C & X band would be well fitted by linear relationship of the square of λ2. Combined other evidences of physical environment in the core of OQ172, we suggest that this source might be a young AGN.

Keywords

Galaxies: jet – galaxies: nuclei – quasars: individual: OQ172
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S290: Feeding Compact Objects: Accretion on All Scales , August 2012 , pp. 271 - 272
Copyright
Copyright © International Astronomical Union 2013

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