An X-ray view of Pictor A radio lobes: a spatially resolved study

Details An X-ray view of Pictor A radio lobes: a spatially resolved study An X-ray view of Pictor A radio lobes: a spatially resolved study

2007-07-18

arxiv.org/abs/0707.2680v1

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures, to appear in the proceedings of Extragalactic Jets: Theory and Observation from Radio to Gamma Ray, Girdwo

Scientific paper

A spatially resolved analysis of the lobes of the radio galaxy Pictor A has been performed for the first time starting from a 50 ksec XMM-Newton observation. Magnetic field, B_{IC}, particle density, particle to magnetic field energy density ratios have been measured. Our study shows that B_{IC} varies through the lobes. On the contrary, a rather uniform distribution of the particles is observed. In both the lobes, the equipartition magnetic field, B_{eq}, is bigger than the Inverse Compton value, B_{IC}, calculated from the radio to X-ray flux ratio.

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