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HD 189733 b



On July 11, 2007, a team lead by Giovanna Tinetti published the results of their observations using the Spitzer Space Telescope concluding there is solid evidence for significant amounts of water vapor in the planet's atmosphere.[8] Follow-up observations made using the Hubble Space Telescope confirm the presence of water vapor and also the organic compound methane.[9] It is currently unknown how the methane originated as the planet's high temperature (700°C, 1292°F) favors the formation of carbon monoxide instead.[9][10]

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References

  1. ^ Bouchy et al. (2005). "ELODIE metallicity-biased search for transiting Hot Jupiters II. A very hot Jupiter transiting the bright K star HD 189733". Astronomy and Astrophysics 444: L15–L19.  (Preprint)
  2. ^ HD 189733 page. University of Geneva (2007-03-05). Retrieved on 2008-02-18.
  3. ^ a b Press Release: NASA's Spitzer First To Crack Open Light of Faraway Worlds
  4. ^ Knutson, Heather A.; David Charbonneau, Lori E. Allen, Jonathan J. Fortney, Eric Agol, Nicolas B. Cowan, Adam P. Showman, Curtis S. Cooper & S. Thomas Megeath (10 May 2007). "A map of the day–night contrast of the extrasolar planet HD 189733b". Nature 447: 183–186. doi:10.1038/nature05782. 
  5. ^ Berdyugina, Svetlana V.; Andrei V. Berdyugin, Dominique M. Fluri, Vilppu Piirola (20 January 2008). "First detection of polarized scattered light from an exoplanetary atmosphere". The Astrophysical Journal 673: L83. doi:10.1086/527320. 
  6. ^ "Rayleigh scattering in the transit spectrum of HD 189733b". Press release. Retrieved on 2008-02-18.
  7. ^ Image ssc2007-09a
  8. ^ Press Release: NASA's Spitzer Finds Water Vapor on Hot, Alien Planet
  9. ^ a b Swain, Mark R.; Vasisht, Gautam; Tinetti, Giovanna (2008-03-20). "The presence of methane in the atmosphere of an extrasolar planet". Nature 452: 329–331. doi:10.1038/nature06823.  arXiv.org link
  10. ^ Stephen Battersby (2008-02-11). Organic molecules found on alien world for first time. Retrieved on 2008-02-12.

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External links




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