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À propos de : Confirmation of persistent radio jets in the microquasar LS 5039        

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  • Confirmation of persistent radio jets in the microquasar LS 5039
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  • We present here new observations conducted with the EVN and MERLIN of the persistent microquasar LS 5039 discovered by Paredes et al. ([CITE]) with the VLBA. The new observations confirm the presence of an asymmetric two-sided jet reaching up to ~1000 AU on the longest jet arm. The results suggest a bending of the jets with increasing distance from the core and/or precession. The origin and location of the high-energy gamma-ray emission associated with the system is discussed and an estimate of the magnetic field at the base of the jet given. Our results suggest a well collimated radio jet. We also comment on new observing strategies to be used with satellites and forthcoming detectors, since this persistent source appears to be a rather good laboratory to explore the accretion/ejection processes taking place near compact objects.
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  • aaeh052
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  • © ESO, 2002
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  • ESO
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