The Circumstellar Family

  • Steven J. Dick
Part of the Astronomers' Universe book series (ASTRONOM)


Debris disks are residual materials observed around stars in the form of a flattened disk after planet formation has taken place. As such, this class is distinguished from protoplanetary disks, such as proplyds that exist before planet formation (P 1), and from circumstellar shells (S 16) formed by mass loss from stars later in stellar evolution.

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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Steven J. Dick
    • 1
  1. 1.AshburnUSA

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