Concept information
Terme préférentiel
gravitational microlensing
Définition(s)
- Gravitational microlensing is an astronomical phenomenon due to the gravitational lens effect. It can be used to detect objects that range from the mass of a planet to the mass of a star, regardless of the light they emit. Typically, astronomers can only detect bright objects that emit much light (stars) or large objects that block background light (clouds of gas and dust). These objects make up only a minor portion of the mass of a galaxy. Microlensing allows the study of objects that emit little or no light. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Gravitational_microlensing)
Concept(s) générique(s)
Traductions
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français
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effet de microlentille
URI
http://data.loterre.fr/ark:/67375/MDL-CT90XP2S-N
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