Extremes of the jet-accretion power relation of blazars, as explored by NuSTAR

T. Sbarrato, G. Ghisellini, G. Tagliaferri, M. Perri, G. M. Madejski, D. Stern, S. E. Boggs, Finn Erland Christensen, W. W. Craig, C. J. Hailey, F. A. Harrison, W. W. Zhang

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    Abstract

    Hard X-ray observations are crucial to study the non-thermal jet emission from high-redshift, powerful blazars. We observed two bright z > 2 flat-spectrum radio quasars (FSRQs) in hard X-rays to explore the details of their relativistic jets and their possible variability. S5 0014+81 (at z = 3.366) and B0222+185 (at z = 2.690) have been observed twice by the Nuclear Spectroscopic Telescope Array (NuSTAR) simultaneously with Swift/X-ray Telescope, showing different variability behaviours. We found that NuSTAR is instrumental to explore the variability of powerful high-redshift blazars, even when no γ -ray emission is detected. The two sources have proven to have respectively the most luminous accretion disc and the most powerful jet among known blazars. Thanks to these properties, they are located at the extreme end of the jet-accretion disc relation previously found for γ -ray detected blazars, to which they are consistent.
    Original languageEnglish
    JournalMonthly Notices of the Royal Astronomical Society
    Volume462
    Issue number2
    Pages (from-to)1542-1550
    ISSN0035-8711
    DOIs
    Publication statusPublished - 2016

    Bibliographical note

    This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 20176The authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

    Keywords

    • Galaxies: active
    • Quasars: general
    • Quasars: individual: B0222+185
    • Quasars: individual: S5 0014+813
    • X-rays: general

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