Dipole toroidal vortexes and wind-accretion instability in active galaxy nuclei
The torus concept as an essential structural component of active galactic nuclei (AGN) is generally accepted. Here, the situation is discussed when “twisting” the torus by radiation or wind transforms it into a dipole toroidal vortex which in turn can be the source of matter replenishing the accre...
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| Datum: | 2006 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2006
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| Schriftenreihe: | Вопросы атомной науки и техники |
| Schlagworte: | |
| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/81160 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Dipole toroidal vortexes and wind-accretion instability in active galaxy nuclei / E.Yu. Bannikova, V.M. Kontorovich // Вопросы атомной науки и техники. — 2006. — № 5. — С. 146-151. — Бібліогр.: 12 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | The torus concept as an essential structural component of active galactic nuclei (AGN) is generally accepted. Here,
the situation is discussed when “twisting” the torus by radiation or wind transforms it into a dipole toroidal vortex
which in turn can be the source of matter replenishing the accretion disk. Thus originating instability which can be responsible
for quasar radiation flares accompanied by matter outbursts is also discussed. A “matreshka” scheme for obscuring
vortex torus structure that could explain the AGN variability and evolution is proposed. The model parameters
estimated numerically for the luminosity close to the Eddington limit agree well with the observations. |
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