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Understanding jets from sources straddling the Fanaroff-Riley divide

Published online by Cambridge University Press:  24 March 2015

Preeti Kharb ,
Ethan Stanley ,
Matthew Lister ,
Herman Marshall ,
Chris O'Dea  and
Stefi Baum
Preeti Kharb
Affiliation:
Indian Institute of Astrophysics, II Block, Koramangala, Bangalore 560034, India email: kharb@iiap.res.in
Ethan Stanley
Affiliation:
Dept. of Physics and Astronomy, 525 Northwestern Avenue, West Lafayette, IN 47907, USA
Matthew Lister
Affiliation:
Dept. of Physics and Astronomy, 525 Northwestern Avenue, West Lafayette, IN 47907, USA
Herman Marshall
Affiliation:
MIT Kavli Institute for Astrophysics and Space Research, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
Chris O'Dea
Affiliation:
University of Manitoba, Winnipeg, MB R3T 2N2Canada Rochester Institute of Technology, 84 Lomb Memorial Drive, Rochester, NY 14623, USA
Stefi Baum
Affiliation:
University of Manitoba, Winnipeg, MB R3T 2N2Canada Rochester Institute of Technology, 84 Lomb Memorial Drive, Rochester, NY 14623, USA
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Abstract

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Results from Chandra-HST-VLA observations of 13 hybrid sources are presented. Data from ten sources in the literature are analysed along with new data from three hybrid blazars belonging to the MOJAVE sample. Studies of such hybrid sources displaying both FRI and FRII jet characteristics could provide the key to resolving the long-standing Fanaroff-Riley dichotomy issue. A majority of the 13 hybrid sources show FRII-like total radio powers, i.e., they are “hybrid” in radio morphology but not in total radio power. VLBI observations of ten of the 13 sources show that the X-ray jet is on the same side as the one-sided VLBI jet. X-rays are therefore emitted from relativistically-boosted approaching jets. This is consistent with the X-ray emission being IC/CMB in origin in the majority of sources. It is not completely clear from our study that asymmetries in the surrounding medium can create hybrid sources. Hybrid radio morphologies could also be indicative of intrinsically asymmetric jets.

Keywords

galaxies: activegalaxies: jetsquasars: generalBL Lacertae objects: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S313: Extragalactic jets from every angle , September 2014 , pp. 211 - 218
Copyright
Copyright © International Astronomical Union 2015 

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