An X-ray jet discovered by Chandra in the z=4.3 radio-selected quasar GB 1508+5714

(2) Columbia University); Andreea O. Petric (2) ((1) Harvard-Smithsonian Center for Astrophysics; Aneta Siemiginowska (1); D.A. Schwartz (1); Frederic Paerels (2); Randall K. Smith (1); Thomas L. Aldcroft (1)

An X-ray jet discovered by Chandra in the z=4.3 radio-selected quasar GB 1508+5714

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arxiv astro-ph/0310241 v1 pith:KAOPAV6J submitted 2003-10-09 astro-ph

Aneta Siemiginowska (1) , Randall K. Smith (1) , Thomas L. Aldcroft (1) , D.A. Schwartz (1) , Frederic Paerels (2) , Andreea O. Petric (2) ((1) Harvard-Smithsonian Center for Astrophysics , (2) Columbia University) This is my paper · ORCID

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We report the Chandra discovery of an X-ray jet associated with the redshift 4.3 radio-loud quasar GB 1508+5714. The jet X-ray emission peaks ~2 arcsec to the South-West of the quasar core. We present archival HST WFPC2 data of the quasar field which shows no optical emission at the location of the X-ray jet. We discuss possible emission mechanisms and give constraints to the magnetic field and energy densities for synchrotron radiation or for Compton scattering of the Cosmic Microwave Background radiation as the jet X-ray emission process.

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