Investigating the Origin of X-ray Jets: A Case Study of Four Hybrid Morphology MOJAVE Blazars

Biny Sebastian,Preeti Kharb,Matthew L. Lister,Herman L. Marshall,Christopher P. O'Dea,Stefi A. Baum

The Astrophysical Journal（2022）SCI 2区SCI 3区

Purdue Univ | Tata Inst Fundamental Res | MIT | Univ Manitoba

Cited 0|Views39

Abstract

We carried out Chandra, Hubble Space Telescope (HST), and Very Large Array observations of four MOJAVE blazars that have previously been classified as hybrid (FR I/II) blazars in terms of radio morphology but not total radio power. The motivation of this study is to determine the X-ray emission mechanism in jets, these being different in FR I and FR II jets. We detected X-ray jet emission with sufficient signal to noise in two blazars, viz. PKS 0215+015 and TXS 0730+504. We carried out spectral energy distribution modeling of the broadband emission from the jet regions in these sources and found that a single synchrotron emission model is ruled out due to the deep upper limits obtained from HST optical and IR data. The inverse Compton-cosmic microwave background model can reproduce the X-ray jet emission in both sources although the model requires extreme jet parameters. Both our sources possess FR II-like radio powers and our results are consistent with previous studies suggesting that radio power is more important than FR morphology in determining the emission mechanism of X-ray jets.

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