Plasma phenomenology in astrophysical systems: Radio-sources and jets

Giovanni Montani, Jacopo Petitta

Research output: Contribution to journalArticle


We review the plasma phenomenology in the astrophysical sources which show appreciable radio emissions, namely Radio-Jets from Pulsars, Microquasars, Quasars, and Radio-Active Galaxies. A description of their basic features is presented, then we discuss in some details the links between their morphology and the mechanisms that lead to the different radio-emissions, investigating especially the role played by the plasma configurations surrounding compact objects (Neutron Stars, Black Holes). For the sake of completeness, we briefly mention observational techniques and detectors, whose structure set them apart from other astrophysical instruments. The fundamental ideas concerning angular momentum transport across plasma accretion disks - together with the disk-source-jet coupling problem - are discussed, by stressing their successes and their shortcomings. An alternative scenario is then inferred, based on a parallelism between astrophysical and laboratory plasma configurations, where small-scale structures can be found. We will focus our attention on the morphology of the radio-jets, on their coupling with the accretion disks and on the possible triggering phenomena, viewed as profiles of plasma instabilities. © 2014 AIP Publishing LLC.
Original languageEnglish
Article number061502
Pages (from-to)-
JournalPhysics of Plasmas
Issue number6
Publication statusPublished - 2014
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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