천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제40권1호
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- Pages.57.4-57.4
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- 2015
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- 1226-2692(pISSN)
일반상대성이론과 빛의 꺾임/중력렌즈
General Relativity and Light Bending/Gravitational Lensing
초록
Light bending by gravity was the key prediction of general relativity. Solar eclipse expedition of 1919 provided the observational support for the theory of general relativity. Diverse gravitational lensing, i.e., light bending, phenomena have been speculated and predicted by general relativity and ultimately discovered many years later. Gravitationally lensed quasars, luminous arcs, weak lensing, and microlensing have provided invaluable information about the distribution of matter, especially of dark matter, and the cosmology. Gravitational lensing is one of the most spectacular manifestation of general relativity and will remain as an extremely useful astrophysical tools in the future.
키워드