An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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GCN: The Gamma-ray Coordinates Network
  توربست ِ هماراهای ِ پرتوهای ِ گاما  
turbast-e hamârâhâ-ye partowhâ-ye gâmâ
Fr.: Le réseau des coordonnées des rayons gamma  

A follow-up community network concerned with → gamma-ray burst (GRB)s. It deals with:

  1. locations of GRBs and other → transients detected by spacecraft (most in real-time while the GRB is still bursting), and 2) reports of follow-up observations (the Circulars) made by ground-based and space-based optical, radio, X-ray, TeV, and other observers.

The GCN Circulars allow the GRB follow-up community to make optimum use of its limited resources (labor and telescope time) by communicating what has already been done or will soon be done.

See also: → gamma ray; → coordinate; → network.