0000000000376877

AUTHOR

G. Chartas

showing 2 related works from this author

A Study of the Correlation between the Amplification of the Fe Kα Line and the X‐Ray Continuum of Quasars due to Microlensing

2006

The observed enhancement of the Fe Kα line in three gravitationally lensed QSOs (MG J0414+0534, QSO 2237+0305, and H1413+117) is interpreted in terms of microlensing, even when equivalent X-ray continuum amplification is not observed. In order to interpret these observations, first we studied the effects of microlensing on quasar spectra produced by a straight fold caustic crossing over a standard relativistic accretion disk. The disk emission was analyzed using the ray-tracing method, considering Schwarzschild and Kerr metrics. When the emission is separated into two regions (an inner disk corresponding to the Fe Kα line and an outer annulus corresponding to the continuum, or vice versa), …

PhysicsQSOSActive galactic nucleusAstrophysics::High Energy Astrophysical PhenomenaContinuum (design consultancy)AstronomyAstronomy and AstrophysicsQuasarAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsGravitational microlensingSpectral lineGravitational lensSpace and Planetary ScienceAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Galaxy AstrophysicsLine (formation)The Astrophysical Journal
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Microlensing of the Fe K$\alpha$ line and the X-ray continuum

2005

The observed enhancement of the Fe K$\alpha$ line in three gravitationally lensed QSOs (MG J0414+0534, QSO 2237+0305, H1413+117) is interpreted in terms of microlensing, even when equivalent X-ray continuum amplification is not observed. In order to interpret these observations, first we studied the effects of microlensing on quasars spectra, produced by straight fold caustic crossing over standard relativistic accretion disk. The disk emission was analyzed using the ray tracing method, considering Schwarzschild and Kerr metrics. When the emission is separated in two regions (an inner disk corresponding to the Fe K$\alpha$ line and an outer annulus corresponding to the continuum, or vice-ve…

Astrophysics::High Energy Astrophysical PhenomenaAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysicsAstrophysics::Galaxy Astrophysics
researchProduct