XMM-Newton Proposal 02063901

Details XMM-Newton Proposal 02063901 XMM-Newton Proposal 02063901

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop..332g&link_type=abstract

XMM-Newton Proposal ID #02063901

Physics

Pictor A, Xmm-Newton Proposal 02063901

Scientific paper

An extended X-ray emission from the eastern radio lobe of Pictor A was discovered in AO1. The X-ray spectrum is well described by both a thermal and a non-thermal model.The X-ray emission could be produced by circum-galactic gas shocked by the supersonic expanding radio lobe or, alternatively,by IC of CMB photons by relativistic electrons in the lobe.If the X-ray emission is non-thermal,the magnetic field in the lobe is estimated to be significatively lower than the equipartition value. We propose to re-observe Pictor A for 50 ksec in order to:1)definitively establish the X-ray non-thermal/thermal nature of the radio lobe radiation and 2) check the equipartition assumption in the radio lobes.

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