antitruncation

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English[edit]

Etymology[edit]

anti- +‎ truncation

Noun[edit]

antitruncation (countable and uncountable, plural antitruncations)

  1. (astronomy, of the disk of a spiral galaxy) The presence of an outer radial surface brightness profile that is distinctly shallower in scope than the main disk profile.

Related terms[edit]

References[edit]

  • P. Erwin, Antitruncation of Disks in Early-Type Barred Galaxies (2005).