Links for More Information:

More on-line information on this publication and discovery:

• First author Dr. Gilda Ballester's home page. Includes email and telephone information for those in the news media who need further information. Links are also provided to her previous research on extrasolar planets.
  
  
• Star chart showing HD 209458 in the night sky. Look for the winged horse!
  
  Tucson, Arizona residents may see HD 209458 through the great public 16-inch reflecting telescope (during the time of year when the Pegasus constellation is visible) at the Flandrau Science Center's Observatory, located on the main University of Arizona campus. The observatory is open from 7 p.m. to 10 p.m., Wednesdays through Saturdays, except on University of Arizona holidays. Viewing is free!
  
  

International news media stories about this discovery:

• UA Scientists Study Faraway Planet by Larry Copenhaver of the Tucson Citizen. Publication Date: February 1, 2007.
  
  
• Recipe Revealed for Layer-Cake Atmosphere of a Baking Planet, by Jeanna Bryner of space.com. Date: January 31, 2007.
  
  
• Hubble slices layer cake: New Hubble Space Telescope observations will help astronomers study the layered atmosphere of an exoplanet, at Astronomy.com, the home page for Astronomy magazine. Date: January 31, 2007
  
  
• Hubble Probes Layer-cake Structure Of Alien World's Atmosphere, at ScienceDaily.com — Your source for the latest research news. Date: January 31, 2007
  
  
• Recipe for 'layer-caked,' baking planet, by Jeanna Bryner at MS-NBC on line. Date: January 31, 2007.
  
  
• Hubble Probes Layer-Cake Structure of Alien World's Atmosphere, at physorg.com. Date: February 1, 2007.
  
  
• Hubble Layer-Cake Structure of Alien World's Atmosphere, at newswise.com. Date: February 1, 2007.
  
  
• Hubble Probes Layer-Cake Structure Of Alien World's Atmosphere in Innovations Report. Date: February 1, 2007.
  
  

Articles about this team's other hot-Jupiter research:

• Scientists discover an evaporating 'cometary' planet in another solar system at SpaceRef.com — Space News As It Happens. Date: March 12, 2003
  
  
• News Release - heic0403: Oxygen and carbon discovered in exoplanet atmosphere ëblow-offí at http://www.spacetelescope.org — The European Home Page for the NASA-ESA Hubble Space Telescope Date: February 2, 2004
  
  

Space Telescope links:

• hubblesite.org, a great public web site about the Earth-orbiting Hubble Space Telescope.
  
  
• Space Telescope Imaging Spectrograph information at hubblesite.org, a great public web site about Hubble. The STIS instrument collected the data used in our hot hydrogen discovery.
  
  
• The Space Telescope Science Institute (STScI) is home to planning, scheduling, and public outreach activities for the Hubble Space Telescope (HST). Data archive and distribution services for the HST and other missions are also provided by STScI.
  
  
• The Space Telescope Imaging Spectrograph (STIS) home page at the Space Telescope Science Institute. STIS was used to obtain the archival data used for our hot hydrogen discovery.
  
  

Other links:

• NASA's announcement of discovery of HD 209458b in 1999 by another research team.
  
  
• Press release for discovery of HD 209458b in 1999.
  
  
• Astronomy Picture of the Day from February 15, 1999, shortly after HD 209458b was discovered.
  
  

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