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Q0906+6930: The Highest-Redshift Blazar

Astrophysics 2009-11-10 v1
Authors: Roger W. Romani , David Sowards-Emmerd , Lincoln Greenhill , Peter Michelson
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Abstract

We report the discovery of a radio-loud flat-spectrum QSO at z=5.47 with properties similar to those of the EGRET gamma-ray blazars. This source is the brightest radio QSO at z>5, with a pc-scale radio jet and a black hole mass estimate >10^{10}M_\odot. It appears to be the most distant blazar discovered to date. High energy observations of this source can provide powerful probes of the background radiation in the early universe.

Keywords

quasars

Cite

@article{arxiv.astro-ph/0406252,
  title  = {Q0906+6930: The Highest-Redshift Blazar},
  author = {Roger W. Romani and David Sowards-Emmerd and Lincoln Greenhill and Peter Michelson},
  journal= {arXiv preprint arXiv:astro-ph/0406252},
  year   = {2009}
}

Comments

To appear in the Astrophysical Journal Letters. 5pp, 3figures

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