Astronomy and Astrophysics – Astronomy
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002newar..46..257k&link_type=abstract
New Astronomy Reviews, Volume 46, Issue 2-7, p. 257-261.
Astronomy and Astrophysics
Astronomy
5
Scientific paper
The centers of galactic disks can repeatedly reach high densities and temperatures, like matter inside stars, such that they start nuclear burning in their mid-planes, and appear as super-massive point sources at present-day resolutions. Near their cores, main-sequence burning evolves into nuclear detonations, whose ejecta are observed in the form of the broad-line region (BLR). Coronal magnetic reconnections generate (relativistic) pair plasma which rams twin jets perpendicular to the disk whenever it succeeds in escaping fast enough from the (lossful) BLR; otherwise we deal with a radio-quiet QSO. The (leptonic) jet plasma performs an ordered, almost loss-free ΣE×ΣB-->-drift through the channels rammed by the pioneer generations, except when running into (external or internal) obstacles and radiating, in the form of hotspots. Here bulk Lorentz factors are converted to random Lorentz factors, (both) of order 106+/-2, as inferred from the synchrotron and inverse-Compton spectra.
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