ESPRESSO Ver também | Referências Menu de navegação«ESO - Espresso»«ESPRESSO - Searching for other Worlds»

Instrumentos astronômicosProjetos de pesquisa de exoplanetas


espectrógrafoVery Large TelescopeObservatório Europeu do Sulplanetassemelhantes à Terramétodo da velocidade radialTerraSol2017




ESPRESSO (Echelle SPectrograph for Rocky Exoplanet- and Stable Spectroscopic Observations)[1] é um espectrógrafo échelle de terceira geração para o Very Large Telescope (VLT) do Observatório Europeu do Sul (ESO). Ele mede as mudanças no espectro de luz com grande sensibilidade, e será usado para procurar planetas semelhantes à Terra por meio do método da velocidade radial. Por exemplo, a nossa Terra induz uma variação das velocidades radiais de 9 cm/s sobre o nosso Sol; esta "oscilação" gravitacional faz com que pequenas variações na cor da luz solar, invisível ao olho humano, mas detectável pelo instrumento.[2]


ESPRESSO está programado para iniciar suas operações científicas em 2017.



Ver também |


  • HARPS

  • HARPS-N

  • Fiber-optic Improved Next-generation Doppler Search for Exo-Earths

  • Telescópio Leonhard Euler

  • SOPHIE

  • ELODIE

  • Anglo-Australian Planet Search

  • Automated Planet Finder


Referências



  1. ↑ «ESO - Espresso» (em inglês). Consultado em 16 de janeiro de 2016 


  2. ↑ «ESPRESSO - Searching for other Worlds» (em inglês). Centro de Astrofísica da Universidade do Porto. Consultado em 16 de janeiro de 2016 








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