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Evolving parsec-scale radio structure in the most distant blazar known

Author

Listed:
  • Tao An

    (Key Laboratory of Radio Astronomy)

  • Prashanth Mohan

    (Key Laboratory of Radio Astronomy)

  • Yingkang Zhang

    (Key Laboratory of Radio Astronomy
    University of Chinese Academy of Sciences)

  • Sándor Frey

    (Konkoly Observatory, CSFK, Konkoly Thege Miklós út 15-17)

  • Jun Yang

    (Onsala Space Observatory)

  • Krisztina É. Gabányi

    (Konkoly Observatory, CSFK, Konkoly Thege Miklós út 15-17
    MTA-ELTE Extragalactic Astrophysics Research Group
    Eötvös Loránd University)

  • Leonid I. Gurvits

    (Joint Institute for VLBI ERIC (JIVE), Postbus 2
    Delft University of Technology)

  • Zsolt Paragi

    (Joint Institute for VLBI ERIC (JIVE), Postbus 2)

  • Krisztina Perger

    (Konkoly Observatory, CSFK, Konkoly Thege Miklós út 15-17
    Eötvös Loránd University)

  • Zhenya Zheng

    (Key Laboratory of Radio Astronomy)

Abstract

Blazars are a sub-class of quasars with Doppler boosted jets oriented close to the line of sight, and thus efficient probes of supermassive black hole growth and their environment, especially at high redshifts. Here we report on Very Long Baseline Interferometry observations of a blazar J0906 + 6930 at z = 5.47, which enabled the detection of polarised emission and measurement of jet proper motion at parsec scales. The observations suggest a less powerful jet compared with the general blazar population, including lower proper motion and bulk Lorentz factor. This coupled with a previously inferred high accretion rate indicate a transition from an accretion radiative power to a jet mechanical power based transfer of energy and momentum to the surrounding gas. While alternative scenarios could not be fully ruled out, our results indicate a possibly nascent jet embedded in and interacting with a dense medium resulting in a jet bending.

Suggested Citation

  • Tao An & Prashanth Mohan & Yingkang Zhang & Sándor Frey & Jun Yang & Krisztina É. Gabányi & Leonid I. Gurvits & Zsolt Paragi & Krisztina Perger & Zhenya Zheng, 2020. "Evolving parsec-scale radio structure in the most distant blazar known," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-019-14093-2
    DOI: 10.1038/s41467-019-14093-2
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