An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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protolunar disk
  گرده‌ی ِ پوروا-مانگی  
gerde-ye purvâ-mângi
Fr.: disque proto-lunaire  

A dense disk of liquid and vapor supposed to have formed around the Earth below the Roche limit after the proto-Earth was impacted by a Mars-sized object. The Moon was accreted from the Earth’s mantle material froming the disk. See also → Theia (S. Charnoz and C. Michaut, 2015, arxiv.1507.05658).

See also: → proto-; → lunar; → disk.