SIMBAD references

2025ApJ...986...75M - Astrophys. J., 986, 75 (2025/June-2)

Investigating the Emission Mechanism in the Spatially Resolved Jets of Two z ≈ 3 Radio-loud Quasars.

MAITHIL J., SCHWARTZ D.A., SIEMIGINOWSKA A., KHARB P., WORRALL D.M., WARDLE J.F.C., MIGLIORI G., CHEUNG C.C., SNIOS B., GOBEILLE D.B., MARSHALL H.L. and BIRKINSHAW M.

Abstract (from CDS):

This study focuses on high-redshift, z > 3, quasars where resolved X-ray jets remain underexplored in comparison to nearby sources. Building upon previous work, we identify and confirm extended kiloparsec-scale jets emission in two quasars (J1405+0415, z = 3.215; J1610+1811, z = 3.122) through meticulous analysis of Chandra X-ray data. To deepen our understanding, high-resolution radio follow-up observations were conducted to constrain relativistic parameters, providing valuable insights into the enthalpy flux of these high-redshift active galactic nucleus jets. The investigation specifically aims to test the X-ray emission mechanism in these quasars by exploring the inverse Compton scattering of cosmic microwave background photons by synchrotron-emitting electrons. Our novel method uses a prior to make a Bayesian estimate of the unknown angle of the jet to our line of sight, thus breaking the usual degeneracy of the bulk Lorentz factor and the Doppler beaming factor.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Relativistic jets - Radio loud quasars - X-ray quasars

Simbad objects: 4

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