Dusty Planetary Systems

  title={Dusty Planetary Systems},
  author={Amaya Moro-martin},
  journal={arXiv: Earth and Planetary Astrophysics},
  • A. Moro-martin
  • Published 29 February 2012
  • Physics, Geology
  • arXiv: Earth and Planetary Astrophysics
Extensive photometric stellar surveys show that many main sequence stars show emission at infrared and longer wavelengths that is in excess of the stellar photosphere; this emission is thought to arise from circumstellar dust. The presence of dust disks is confirmed by spatially resolved imaging at infrared to millimeter wavelengths (tracing the dust thermal emission), and at optical to near infrared wavelengths (tracing the dust scattered light). Because the expected lifetime of these dust… 
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