Iron Emission Lines from Extended X-ray Jets in SS 433: Reheating of Atomic Nuclei

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Science  06 Sep 2002:
Vol. 297, Issue 5587, pp. 1673-1676
DOI: 10.1126/science.1073660

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Powerful relativistic jets are among the most ubiquitous and energetic observational consequences of accretion around supermassive black holes in active galactic nuclei and neutron stars and stellar-mass black holes in x-ray binary (XRB) systems. But despite more than three decades of study, the structure and composition of these jets remain unknown. Here we present spatially resolved x-ray spectroscopy of arc second–scale x-ray jets from XRB SS 433 analyzed with the Chandra advanced charge-coupled device imaging spectrometer. These observations reveal evidence for a hot continuum and Doppler-shifted iron emission lines from spatially resolved regions. Apparently, in situ reheating of the baryonic component of the jets takes place in a flow that moves with relativistic bulk velocity even more than 100 days after launch from the binary core.

  • * To whom correspondence should be addressed. E-mail: migliari{at}, rpf{at}

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