photon sphere

名词 n.
中文释义

英文释义

名词 n.
  1. Of a black hole, a spherical limit around a black hole at such distance that any photon meeting it tangentially is constrained to travel in a circular orbit; (more loosely) the region between this limit and the event horizon.
    — The radius of the photon sphere is also the lower bound for any stable orbit.

词形变化

photon spheres plural

词源

From photon + sphere.
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