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Sounding Rocket to Peek at Atmosphere of Venus

27/11/2013

Sounding Rocket to Peek at Atmosphere of Venus

  • Categoría Astronomía
  • The Venus Spectral Rocket Experiment (VeSpR, PI John Clarke, Boston U.) launched successfully today from White Sand Missile Range. VeSpR will study the present day escape of water from the atmosphere of Venus and relate it to the past abundance of water on Venus by measuring hydrogen (H) and the heavier, slower to escape, deuterated hydrogen (D) above 90 km on Venus. The use of a pre-dispersing prism to prevent long wavelengths from entering the spectrograph permits a long-aperture approach to echelle spectroscopy, and the chosen combination of imaging and dispersion scales provides high spectral resolution of emission line profiles with a several arc sec wide aperture for good sensitivity.

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