Detailed Structure of the X-Ray Jet in 4C 19.44 (=PKS1354+195)

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We investigate the variations of the magnetic field, Doppler factor, and relativistic particle density along the jet of a quasar at z=0.72. We chose 4C 19.44 for this study because of its length and straight morphology. The 18 arcsec length of the jet provides many independent resolution elements in the Chandra X-ray image. The straightness suggests that geometry factors, although uncertain, are almost constant along the jet. We assume the X-ray emission is from inverse Compton scattering of the cosmic microwave background. With the aid of assumptions about jet alignment, equipartition between magnetic-field and relativistic-particle energy, and filling factors, we ... continued below

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2 pages

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Schwartz, Daniel A.; Harris, D.E.; Landt, H.; Siemiginowska, A.; Observ., /Smithsonian Astrophys.; Perlman, E.S. et al. October 31, 2006.

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We investigate the variations of the magnetic field, Doppler factor, and relativistic particle density along the jet of a quasar at z=0.72. We chose 4C 19.44 for this study because of its length and straight morphology. The 18 arcsec length of the jet provides many independent resolution elements in the Chandra X-ray image. The straightness suggests that geometry factors, although uncertain, are almost constant along the jet. We assume the X-ray emission is from inverse Compton scattering of the cosmic microwave background. With the aid of assumptions about jet alignment, equipartition between magnetic-field and relativistic-particle energy, and filling factors, we find that the jet is in bulk relativistic motion with a Doppler factor {approx} 6 at an angle no more than 10{sup o} to the line of sight over deprojected distances {approx} 150-600 kpc from the quasar, and with a magnetic field {approx} 10 {micro}Gauss.

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2 pages

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  • Journal Name: Submitted to IAU Symp.; Conference: To appear in the proceedings of IAU Symposium 238: Black Holes: From Stars to Galaxies, Prague, Czech Republic, 21-25 Aug 2006

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  • Report No.: SLAC-PUB-12178
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 894567
  • Archival Resource Key: ark:/67531/metadc886853

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  • October 31, 2006

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 23, 2016, 3:08 p.m.

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Schwartz, Daniel A.; Harris, D.E.; Landt, H.; Siemiginowska, A.; Observ., /Smithsonian Astrophys.; Perlman, E.S. et al. Detailed Structure of the X-Ray Jet in 4C 19.44 (=PKS1354+195), article, October 31, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc886853/: accessed December 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.