The Exozodiacal Dust Problem for Direct Observations of Exo-Earths

  title={The Exozodiacal Dust Problem for Direct Observations of Exo-Earths},
  author={Aki Roberge and Christine H. Chen and Rafael Millan-Gabet and Alycia J. Weinberger and Philip M. Hinz and Karl R. Stapelfeldt and Olivier Absil and Marc J. Kuchner and Geoffrey C. Bryden},
  journal={Publications of the Astronomical Society of the Pacific},
  pages={799 - 808}
Debris dust in the habitable zones of stars—otherwise known as exozodiacal dust—comes from extrasolar asteroids and comets and is thus an expected part of a planetary system. Background flux from the solar system’s zodiacal dust and the exozodiacal dust in the target system is likely to be the largest source of astrophysical noise in direct observations of terrestrial planets in the habitable zones of nearby stars. Furthermore, dust structures like clumps, thought to be produced by dynamical… 

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