An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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big blue bump
  قوز ِ آبی ِ بزرگ  
quz-e âbi-ye bozorg
Fr.: grande bosse bleue  

The broad continuum feature dominating the optical-ultraviolet spectra of AGNs. Most current models attribute the big blue bump to thermal emission from an optically thick accretion disk.

See also: → big; → blue; bump, → bump Cepheid.