Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980srst.coll..197s&link_type=abstract
In NASA. Marshall Space Flight Center Sci. Res. with the Space Telescope p 197-214 (SEE N80-22130 12-88)
Astronomy and Astrophysics
Astronomy
2
Active Galaxies, Galactic Nuclei, Hubble Space Telescope, Quasars, Black Holes (Astronomy), Elliptical Galaxies, Galactic Radio Waves, Galactic Structure, Radio Galaxies, Seyfert Galaxies
Scientific paper
Theories describing the central regions of nonthermal extragalactic sources (radio galaxies, Seyfert nuclei, quasars, etc.) are examined in the light of the experimental possibilities afforded by the Space Telescope. In particular, the theory which proposes the accretion of stars or gas onto a black hole as the explanation of the central engine is discussed. Planned observations directed towards the problem of the mass, size, and structure of the central engine, and the phenomenological questions regarding the general environment of the central engine are outlined.
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