The Inner Jet of the Radio Galaxy M87

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dc.creatorKovalev, Y. Y.
dc.creatorLister, M. L.
dc.creatorHoman, D. C.
dc.creatorKellermann, K. I.
dc.date2007-08-20
dc.date2007-08-22
dc.date.accessioned2026-07-07T08:32:29Z
dc.date.available2026-07-07T08:32:29Z
dc.descriptionWe report new 2 cm VLBA images of the inner radio jet of M87 showing a limb brightened structure and unambiguous evidence for a faint 3 mas long counter-feature which also appears limb brightened. Multi-epoch observations of seven separate jet features show typical speeds of less than a few percent of the speed of light, despite the highly asymmetric jet structure and the implications of the canonical relativistic beaming scenario. The observed morphology is consistent with a two stream spine-sheath velocity gradient across the jet, as might be expected from the recently discovered strong and variable TeV emission as well as from numerical modeling of relativistic jets. Considering the large jet to counter-jet flux density ratio and lack of observed fast motion in the jet, we conclude that either the inner part of the M87 jet is intrinsically asymmetric or that the bulk plasma flow speed is much greater than any propagation of shocks or other pattern motions.
dc.description4 pages, 2 color figures, 1 table, accepted for publication in the Astrophysical Journal Letters; a typo in a reference has been corrected
dc.identifierhttps://arxiv.org/abs/0708.2695
dc.identifierhttp://arxiv.org/abs/0708.2695
dc.identifierAstroph.J.Lett. 668 (2007), 27-30
dc.identifierdoi:10.1086/522603
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/138808
dc.subjectAstrophysics
dc.titleThe Inner Jet of the Radio Galaxy M87
dc.typetext

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