Implications of ARP 102B - Line emission from an accretion disk?

Details Implications of ARP 102B - Line emission from an accretion disk? Implications of ARP 102B - Line emission from an accretion disk?

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...355l..15s&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 355, May 20, 1990, p. L15-L18.

Astronomy and Astrophysics

Astronomy

35

Accretion Disks, Black Holes (Astronomy), Line Spectra, Quasars, Seyfert Galaxies, Active Galactic Nuclei, Astronomical Models, Galactic Radiation, Red Shift

Scientific paper

It has been proposed that the low-ionization broad lines in AGN originate directly from a radiating accretion disk. A comparison is made between the predictions of the disk models and the largest available sample of line profile parameters. The comparison, made at three different profile heights, shows little agreement with the theoretical predictions. The models imply that all or most profile asymmetries will be red (i.e., excess of emission on the long-wavelength side of the profile). In fact, many blue asymmetries are observed. Perhaps the most significant conclusion from the comparison is that the disk must be completely or almost completely obscured in most AGN (or not a source of significant line radiation).

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