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- W4237986180 abstract "The formation of relativistic astrophysical jets is presumably mediated by magnetic fields threading accretion disks and central, rapidly rotating objects. As it is accelerated by magnetic stresses, the jet's kinetic energy flux grows at the expense of its Poynting flux. However, it is unclear how efficient is the conversion from magnetic to kinetic energy and whether there are any observational signatures of this process. We address this issue in the context of jets in quasars. Using data from all spatial scales, we demonstrate that in these objects the conversion from Poynting-flux-dominated to matter-dominated jets is very likely to take place closer to the black hole than the region where most of the Doppler boosted radiation observed in blazars is produced. We briefly discuss the possibility that blazar activity can be induced by global MHD instabilities, e.g., via the production of localized velocity gradients that lead to dissipative events such as shocks or magnetic reconnection, where acceleration of relativistic particles and production of non-thermal flares is taking place." @default.
- W4237986180 created "2022-05-12" @default.
- W4237986180 creator A5012517748 @default.
- W4237986180 date "2005-02-02" @default.
- W4237986180 modified "2023-10-14" @default.
- W4237986180 title "Are Quasar Jets Dominated by Poynting Flux?" @default.
- W4237986180 doi "https://doi.org/10.2172/839767" @default.
- W4237986180 hasPublicationYear "2005" @default.
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