English

Understanding Jets from Sources Straddling the Fanaroff-Riley Divide

Astrophysics of Galaxies 2015-06-23 v1 High Energy Astrophysical Phenomena

Abstract

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.

Cite

@article{arxiv.1411.1534,
  title  = {Understanding Jets from Sources Straddling the Fanaroff-Riley Divide},
  author = {Preeti Kharb and Ethan Stanley and Matthew Lister and Herman Marshall and Chris O'Dea and Stefi Baum},
  journal= {arXiv preprint arXiv:1411.1534},
  year   = {2015}
}

Comments

9 pages, 3 figures, Invited Talk, To appear in the Proceedings of the IAU Symposium No. 313: "Extragalactic jets from every angle," Galapagos, Ecuador, 15-19 September 2014, F. Massaro, C. C. Cheung, E. Lopez, and A. Siemiginowska (Eds.), Cambridge University Press

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