Chandra reveals a double-sided X-ray jet in the quasar 3C9 at z=2.012

Details Chandra reveals a double-sided X-ray jet in the quasar 3C9 at z=2.012 Chandra reveals a double-sided X-ray jet in the quasar 3C9 at z=2.012

2002-04-29

arxiv.org/abs/astro-ph/0204488v1

Mon.Not.Roy.Astron.Soc.338:L7,2003

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures, submitted to MNRAS

Scientific paper

10.1046/j.1365-8711.2003.06111.x

A Chandra observation of the radio-loud quasar 3C9 at redshift z=2.012 has revealed extended X-ray emission coincident with the radio jet. Of particular interest is the appearance of both jet and counterjet, which argues against the X-ray emission being highly beamed. We present the properties of the jets and discuss possible scenarios for the X-ray emission, contrasting them with the single sided jet found in PKS 0637-752, which has a similar X-ray luminosity. The jet X-ray emission in 3C9 is likely to be due to either nonthermal emission from a sheath with bulk Lorentz factor less than 1.5, or thermal emission from shocked cold gas surrounding the quasar. The thermal possibility implies a high mass for the cold gas unless it is highly clumped.

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