The influence of relativistic kinematics on the asymmetry of spectral line profiles and the observed asymmetries in AGN's

Bibcode
1989A&A...214...79M
Mediavilla, E.; Insertis, F. M.
Bibliographical reference

Astronomy and Astrophysics (ISSN 0004-6361), vol. 214, no. 1-2, April 1989, p. 79-82.

Advertised on:
4
1989
Number of authors
2
IAC number of authors
2
Citations
11
Refereed citations
10
Description
The influence of general relativistic effects on spectral line profiles is studied. Some peculiarities observed in the profiles of broad lines of AGNs, like the global redshift of the line and simultaneous blueshift of the peak of the profile with respect to the reference system of the narrow lines, are obtainable if the source region is rotating with relativistic speeds around the active nucleus. The main effects responsible for the asymmetry are the 'beaming' of the radiation, which enhances the wavelengths on the blue side, together with the usual gravitational redshift and transversal Doppler effects. A good fitting of the resulting expressions for the simple model considered in this paper to the observational data for the blueshift of the profile peak is obtained.
Type
Refereed
Active galactic nuclei
Quasars
Radio galaxies

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