FOCUSING OF THE QUASAR RADIATION IN THE GRAVITATIONAL FIELD OF A MICROLENS-STAR LOCATED IN A MACROLENS-GALAXY: 2. ISOPHOT STRUCTURE AND AMPLIFICATION OF BRIGHTNESS OF THE RADIATION SOURCE VISIBLE IMAGE

L. A.  Berdina; A. A. Minakov; V. G.  Vakulik

doi:10.1615/RadioPhysicsRadioAstronomy.v3.i1.20

Radio Physics and Radio Astronomy

Editor en Jefe: Leonid M. Lytvynenko (open in a new tab)

Editor en Jefe Adjuntos: Alexandr A. Konovalenko (open in a new tab) Valery M. Shulga (open in a new tab) Alexei A. Kostenko (open in a new tab)

Publicado 4 números por año

ISSN Imprimir: 2152-274X

ISSN En Línea: 2152-2758

FOCUSING OF THE QUASAR RADIATION IN THE GRAVITATIONAL FIELD OF A MICROLENS-STAR LOCATED IN A MACROLENS-GALAXY: 2. ISOPHOT STRUCTURE AND AMPLIFICATION OF BRIGHTNESS OF THE RADIATION SOURCE VISIBLE IMAGE

Volumen 3, Edición 1, 2012, pp. 7-17

DOI: 10.1615/RadioPhysicsRadioAstronomy.v3.i1.20

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L. A. Berdina
Institute of Radio Astronomy, National Academy of Sciences of Ukraine

A. A. Minakov
Institute of Radio Astronomy, National Academy of Sciences of Ukraine

V. G. Vakulik
Institute of Astronomy, V. Karazin National University of Kharkiv, and Institute of Radio Astronomy, National Academy of Sciences of Ukraine, Ukraine

SINOPSIS

The focusing effect by a complex gravitational lens formed by the gravitational fields of a macrolens-galaxy and microlens star is analyzed using the Sobolev method within the paraxial optics approximation. The problem is solved for an arbitrary location of the microlens along the source-macrolens-observer line. The image isophots are presented and magnification factor of the complex lens is calculated. It is shown that the greatest influence of the microlens on the focusing effect is observed in the case where the microlens is located on the macrolens-observer segment. The obtained results can be used for solving the inverse problem of recovering parameters of a hidden mass from observations of the microlensing.

PALABRAS CLAVE: microlens-star, macrolens-galaxy, quasar, Sobolev method, gravitational microlensing, image isophots, magnification factor

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