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Accretion disks in Seyfert nuclei: broad line profiles and asymmetries
1983 (English)In: Astronomy and Astrophysics, ISSN 0004-6361, E-ISSN 1432-0746, Vol. 126, no 2, 363-371371 p.Article in journal (Refereed) Published
Abstract [en]

Keplerian rotation around a massive object in the centre of a Seyfert galaxy is considered as the main broadening mechanism for the broad emission lines. The resultant line profiles are shown to be of power-law form in the wings and are compared with recently published high quality observations. Several possible solutions are given for the [O III]-problem raised by Shields (1978). Asymmetries in the line profiles are explained by anisotropically radiating filaments in two oppositely directed jets emanating from the centre of the disk and by radial motions in or above the disk

Place, publisher, year, edition, pages
1983. Vol. 126, no 2, 363-371371 p.
Keyword [en]
Theoretical or Mathematical/ astronomical spectra, black holes, galactic nuclei, Seyfert galaxies, spectral line breadth/ asymmetric line profiles, power law profiles, line wings, forbidden O III, accretion disc, supermassive black hole, Seyfert nuclei, broad line profiles, Keplerian rotation, massive object, Seyfert galaxy, broad emission lines, anisotropically radiating filaments, oppositely directed jets, radial motions/ A9760L Black holes A9850C General parameters, classifications of galaxies A9850E Galactic structure, content and morphology A9850R Active and peculiar galaxies
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:uu:diva-197184ISI: 2157261OAI: oai:DiVA.org:uu-197184DiVA: diva2:611946
Available from: 2013-03-19 Created: 2013-03-18 Last updated: 2013-03-19

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