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The very low albedo of an extrasolar planet: MOST spacebased photometry of HD 209458

Authors
  • Jason Rowe
  • Jaymie M, Matthews
  • Sara, Seager
  • Eliza, Miller-Ricci
  • Dimitar, Sasselov
  • Rainer, Kuschnig
  • David B, Guenther
  • Anthony F J, Moffat
  • Slavek M, Rucinski
  • Gordon A H, Walker
  • Werner W, Weiss
Type
Published Article
Journal
arXiv preprint arXiv:0711.4111
Publication Date
Nov 26, 2007
Source
SETI Institute
License
Unknown

Abstract

Measuring the albedo of an extrasolar planet provides insights into its atmospheric composition and its global thermal properties, including heat dissipation and weather patterns. Such a measurement requires very precise photometry of a transiting system sampling fully many phases of the secondary eclipse. Spacebased optical photometry of the transiting system HD 209458 from the MOST (Microvariablity and Oscillations of STars) satellite, spanning 14 and 44 days in 2004 and 2005 respectively, allows us to set a ...

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