The gravitational microlens influence on X-ray spectral line generated by an AGN accretion disc | Zendy

Luka Č. Popović | Zendy; E. Mediavilla | Zendy; J. A. Muñoz | Zendy; M. S. Dimitrijević | Zendy; P. Jovanović | Zendy

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The gravitational microlens influence on X-ray spectral line generated by an AGN accretion disc

Author(s) -

Luka Č. Popović,

E. Mediavilla,

J. A. Muñoz,

M. S. Dimitrijević,

P. Jovanović

Publication year - 2001

Publication title -

serbian astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.196

H-Index - 16

eISSN - 1820-9289

pISSN - 1450-698X

DOI - 10.2298/saj0164053p

Subject(s) - physics , gravitational microlensing , astrophysics , bulge , accretion (finance) , accretion disc , microlens , astronomy , line (geometry) , gravitation , radius , galaxy , spectral line , optics , lens (geology) , geometry , mathematics , computer security , computer science

The influence of gravitational microlensing on the X-ray spectral line profiles originated from a relativistic accretion disc has been studied. Using a disc model, we show that microlensing can induce noticeable changes in the line shapes when the Einstein ring radius associated with the microlens is of a size comparable to that of the accretion disc. Taking into account the relatively small size of the X-ray accretion disc, we found that compact objects (of about a Solar mass) which belong to the bulge of the host galaxy can produce significant changes in the X-ray line profile of AGN

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