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Polarization observations of the hot-spot Pictor A West: shocks in backflows?

Abstract:

We present optical polarization maps of the western hot-spot of the radio galaxy Pictor A. We confirm the presence of optical emission in a bar-shaped structure extending over 24 arcsec perpendicular to the jet direction upstream of the hot-spot. We find its optical emission to be highly polarized with magnetic vectors being aligned perpendicular to the jet axis. From the high degree of polaxization we infer that the extended optical emission is of synchrotron origin. Radiative lifetimes of e...

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Publication status:
Published

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Volume:
250
Pages:
259-263
Publication date:
2002-01-01
URN:
uuid:6bc17bbc-7d31-4b5e-80fd-3ba198db4426
Source identifiers:
30309
Local pid:
pubs:30309
ISBN:
1-58381-090-0

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