synestia

名词 n.

英文释义

名词 n.
  1. A donut-shaped body of vaporized and molten rock formed from the collision of two planet-sized objects.
    — For any rotating planetary body, there is a thermal limit beyond which the rotational velocity at the equator intersects the Keplerian orbital velocity. Beyond this corotation limit (CoRoL), a hot planetary body forms a structure, which we name a synestia, with a corotating inner region connected to a disk-like outer region.

词形变化

synestias plural

词源

From syn- (“together”) + Hestia.
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