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P3 panel summary: exozodiacal dust disks

Publication Date
  • Physical
  • Chemical
  • Mathematical & Earth Sciences :: Space Science
  • Astronomy & Astrophysics [G05]
  • Physique
  • Chimie
  • Mathématiques & Sciences De La Terre :: Aérospatiale
  • Astronomie & Astrophysique [G05]


When observing an extrasolar planetary system, the most luminous component after the star itself is generally the light scattered and/or thermally emitted by a population of micron-sized dust grains. These grains are expected to be continuously replenished by the collisions and evaporation of larger bodies just as in our solar zodiacal cloud. Exozodiacal clouds (\exozodis") must therefore be seriously taken into account when attempting to directly image faint Earth-like planets (exoEarths, for short). This paper summarizes the oral contributions and discussions that took place during the Satellite Meeting on exozodiacal dust disks, in an attempt to address the following two questions: Do we need to solve the exozodi question? If yes, how to best solve it?

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