ar X iv : a st ro - p h / 06 07 58 1 v 1 2 6 Ju l 2 00 6 The Spectral Energy Distribution of the High - Z Blazar Q 0906 + 6930
نویسنده
چکیده
We describe further observations of QSO J0906+6930, a z=5.48 blazar likely to be detected in γ-rays. New radio and X-ray data place significant constraints on any kpc-scale extension of the VLBA-detected jet. Improved optical spectroscopy detects absorption from an intervening galaxy at z=1.849 and raise the possibility that this distant, bright source is lensed. We combine the new data into an improved SED for the blazar core and comment on the Compton keV-GeV flux component. Subject headings: galaxies: jets – quasars: general
منابع مشابه
ar X iv : a st ro - p h / 04 06 25 2 v 1 9 J un 2 00 4 Q 0906 + 6930 : The Highest - Redshift Blazar
We report the discovery of a radio-loud flat-spectrum QSO at z=5.47 with properties similar to those of the EGRET γ-ray blazars. This source is the brightest radio QSO at z>5, with a pc-scale radio jet and a black hole mass estimate & 10M⊙. 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...
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