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Detection of an exoplanet by microlens effect - Detection of an exoplanet: Gravitational microlensing -...
IMAGE
number
PIX4573970
Image title
Detection of an exoplanet by microlens effect - Detection of an exoplanet: Gravitational microlensing - On the left, the observation of a distant star whose light is diluted. On the right, the light of this star is amplified by gravitational lens effect. The gravitational lens effect occurs when the gravitational field of a star acts as a magnifying glass by amplifying the light emitted by a farther star. This amplification is measurable, and when the foreground star is accompanied by a planet, a second peak of intensity in the life rays appears more weakly. Illustration showing at left the observation of faint light emitted by a distant star, at right, the light of the same star magnified by a gravitational lens. Microlensing occurs when the gravitational field of a star acts like a lens, magnifying the light of a distant background star. Possible planets orbiting the foreground star can cause detectable anomalies in the lensing event light curve
Detection of an exoplanet by microlens effect - Detection of an exoplanet: Gravitational microlensing - On the left, the observation of a distant star whose light is diluted. On the right, the light of this star is amplified by gravitational lens effect. The gravitational lens effect occurs when the gravitational field of a star acts as a magnifying glass by amplifying the light emitted by a farther star. This amplification is measurable, and when the foreground star is accompanied by a planet, a second peak of intensity in the life rays appears more weakly. Illustration showing at left the observation of faint light emitted by a distant star, at right, the light of the same star magnified by a gravitational lens. Microlensing occurs when the gravitational field of a star acts like a lens, magnifying the light of a distant background star. Possible planets orbiting the foreground star can cause detectable anomalies in the lensing event light curve
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