Testing adiabatic expansion of shocks in parsec-scale jets by dual-frequency VLBI experiments

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dc.creatorPushkarev, A. B.
dc.creatorKovalev, Y. Y.
dc.creatorLobanov, A. P.
dc.date2008-07-21
dc.date.accessioned2026-07-07T12:41:26Z
dc.date.available2026-07-07T12:41:26Z
dc.descriptionWe present results of simultaneous dual-frequency (2 GHz and 8 GHz) very long baseline interferometry (VLBI) observations of 12 active galactic nuclei with prominent jets. Spectral properties of the jets and evolution of their brightness temperature are discussed. Measured sizes and brightness temperatures of VLBI features are found to be consistent with emission from relativistic shocks dominated by adiabatic losses. Physical scenarios with different magnetic field orientation in the jets are discussed.
dc.description4 pages, 10 figures, to appear in Memorie della Societa Astronomica Italiana, Vol. 79
dc.identifierhttps://arxiv.org/abs/0807.3229
dc.identifierhttp://arxiv.org/abs/0807.3229
dc.identifierMem.S.A.It. 79 (2008) 1170-1173
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219769
dc.subjectAstrophysics
dc.titleTesting adiabatic expansion of shocks in parsec-scale jets by dual-frequency VLBI experiments
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