Discovery of a radio jet in the Cloverleaf quasar at z = 2.56
Journal article, 2023
The fast growth of supermassive black holes and their feedback to the host galaxies play an important role in regulating the evolution of galaxies, especially in the early Universe. However, due to cosmological dimming and the limited angular resolution of most observations, it is difficult to resolve the feedback from the active galactic nuclei (AGNs) to their host galaxies. Gravitational lensing, for its magnification, provides a powerful tool to spatially differentiate emission originating from AGN and host galaxy at high-redshifts. Here, we report a discovery of a jet-like radio structure in a strongly lensed starburst quasar, H1413+117 or Cloverleaf at redshift z = 2.56, based on observational data at optical, submillimetre, and radio wavelengths. With both parametric and non-parametric lens models and with reconstructed images in the source plane, we find a well-separated, kpc-scaled, single-sided radio jet located at projected to the north-west of the host galaxy in the source plane. This could indicate the co-existence of feedback from the AGN by both wind and jet in the Cloverleaf quasar.
submillimetre: galaxies
gravitational lensing: strong
galaxies: jets
Author
Lei Zhang
Nanjing University
Z. Y. Zhang
Nanjing University
James W. Nightingale
Durham University
Ze Cheng Zou
Nanjing University
Xiaoyue Cao
Chinese Academy of Sciences
Beijing Normal University
Chao Wei Tsai
Chinese Academy of Sciences
Chentao Yang
Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics
European Southern Observatory Santiago
Yong Shi
Nanjing University
Junzhi Wang
Guangxi University
Shanghai Astronomical Observatory
Dandan Xu
Tsinghua University
Ling Rui Lin
Nanjing University
Jing Zhou
Nanjing University
Ran Li
Beijing Normal University
Chinese Academy of Sciences
Monthly Notices of the Royal Astronomical Society
0035-8711 (ISSN) 1365-2966 (eISSN)
Vol. 524 3 3671-3682Exploring the Hidden Dusty Nuclei of Galaxies (HIDDeN)
European Research Council (ERC) (789410), 2018-10-01 -- 2023-09-30.
Subject Categories
Astronomy, Astrophysics and Cosmology
DOI
10.1093/mnras/stad2069