The 2200 Å bump and the interstellar extinction curve

  title={The 2200 {\AA} bump and the interstellar extinction curve},
  author={Fr{\'e}d{\'e}ric Zagury},
  journal={Astronomische Nachrichten},
  • F. Zagury
  • Published 31 August 2012
  • Physics
  • Astronomische Nachrichten
The 2200 A bump is a major figure of interstellar extinction. However, extinction curves with no bump exist and are, with no exception, linear from the near-infrared down to 2500 A at least, often over all the visible-UV spectrum. The duality linear versus bump-like extinction curves can be used to re-investigate the relationship between the bump and the continuum of interstellar extinction, and answer questions as why do we observe two different kinds of extinction (linear or with a bump) in… Expand

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