Microlensing effects and structure of gravitational lens systems
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Microlensing effects and structure of gravitational lens systems
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| Creator |
Fedorova, E.V.
Alexandrov, A.N. Zhdanov, V.I. |
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| Subject |
MS3: Physics of Stars and Galaxies
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| Description |
A study of gravitational microlensing of distant objects is presented. We performed simulations of light curves and trajectories of the image centroid of an extended source in the Chang–Refsdal lens with shear and continual dark matter. Various brightness distributions over the source (Gaussian, power-law, Shakura–Synyaev accretion disc) have been studied. We considered in detail approximate relations and corresponding algorithms used to fit observational data on high amplification events (HAE). The results are applied to interpretation of HAE observed by OGLE and GLITP groups. The source size and caustic crossing moment are estimated from these data, however, the determination of the brightness profile is statistically not reliable.
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| Date |
2015-04-03T17:47:17Z
2015-04-03T17:47:17Z 2005 |
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| Type |
Article
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| Identifier |
Microlensing effects and structure of gravitational lens systems / E.V. Fedorova, A.N. Alexandrov, V.I. Zhdanov // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 276-278. — Бібліогр.: 5 назв. — англ.
0233-7665 http://dspace.nbuv.gov.ua/handle/123456789/79658 |
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| Language |
en
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| Relation |
Кинематика и физика небесных тел
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| Publisher |
Головна астрономічна обсерваторія НАН України
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