A Parametric Representation of Critical Curves and Caustics for a Binary Gravitational Lens(Astrophysics and Relativity)
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概要
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We find a simple expression for critical curves of a binary gravitational lens. On the basis of this, we present a parametric representation of such curves. The caustics can also be expressed with the same parameterization. The present result is helpful for efficiently constructing many templates of light curves due to binary systems, particularly extrasolar planets, which cause spikes in the light curves when a source crosses the caustics.
- 理論物理学刊行会の論文
- 2003-09-25
著者
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Asada Hideki
Kobe University
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ASADA Hideki
Yukawa Institute for Theoretical Physics, Kyoto University
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Asada Hideki
Institute For Astrophysics At Paris:faculty Of Science And Technology Hirosaki University
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Asada Hideki
Institute For Astrophysics At Paris
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ASADA Hideki
Faculty of Science and Technology, Hirosaki University:Max-Planck-Institut fur Astrophysik
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ASADA Hideki
Faculty of Science and Technology, Hirosaki University:Max-Planck-Institute fur Gravitationsphysik
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