Profile of a line emitted by an accretion disk - Influence of the geometry upon its shape parameters

Details Profile of a line emitted by an accretion disk - Influence of the geometry upon its shape parameters Profile of a line emitted by an accretion disk - Influence of the geometry upon its shape parameters

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....95...18g&link_type=abstract

Astronomy and Astrophysics, vol. 95, no. 1, Feb. 1981, p. 18-23.

Astronomy and Astrophysics

Astronomy

38

Black Holes (Astronomy), Point Spread Functions, Stellar Mass Accretion, Stellar Spectrophotometry, Emission Spectra, Ring Structures

Scientific paper

The purpose of this paper is to study profiles of a line emitted by a luminous accretion disk rotating around a dense static and symmetrical body such as a black hole. The case of a ring at intermediate distance from the central mass is studied. An analytical expression is derived for the line profiles which appear to be asymmetric, two-peaked, blue- or red-shifted depending on the geometrical characteristics of the accretion disk. The different correlations between the shift, the width, and the asymmetry of the line profile are examined.

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