An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

Homepage  Preliminaries  Abbreviations  Acknowledgments  References 
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
nulling interferometry
  اندرزنش‌سنجی ِ نولی  
andarzanešsanj-ye nuli
Fr.: interférométrie annulante  

A technique for blocking the light of a bright source in order to reveal a faint source near it. This technique uses destructive → interference
between two or more → coherent beams from a number of telescopes to make the bright center dark. Nulling interferometry can be used to search the region immediately around a star for → extrasolar planets and
→ circumstellar dust clouds by suppressing the star’s glare.

See also: Nulling, from → null; → interferometry.