On the entrainment of line-emitting clouds by jets in active galaxies.

Details On the entrainment of line-emitting clouds by jets in active galaxies. On the entrainment of line-emitting clouds by jets in active galaxies.

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...314..368f&link_type=abstract

Astronomy and Astrophysics, v.314, p.368-378

Astronomy and Astrophysics

Astrophysics

3

Hydrodynamics, Ism: Clouds, Galaxies: Active, Galaxies: Jets

Scientific paper

We consider the process of entrainment of the line-emitting clouds by jets in domains of narrow-line emitting regions in Seyfert and radio- galaxies. In our model the clouds penetrate the jet perpendicular to the jet's axis. Several regimes of entrainment are possible. They mostly depend on the value of the "entrainment parameter" ɛ=t_cr_/t_ent_, where t_cr_ is the cloud-jet crossing time and t_ent_ is the entrainment time. Comparing our calculations with observations, we infer that regimes of ɛ<<1 and ɛ>>1 are possibly realised in some astrophysical objects.

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