Brown dwarfとは 意味・読み方・使い方

名詞

brown dwarf (plural brown dwarfs or (rare) brown dwarves)

1. (astronomy) A starlike object that contracts to about the volume of Jupiter after its formation phase; its mass may range from several times that of Jupiter, such that it fuses deuterium, up to just below the threshold of sustained hydrogen fusion.
   • 2024 August 21, Ashley Strickland, “An unusual object is moving so fast it could escape the Milky Way. Scientists aren’t certain what it is”, in CNN‎:

     But none of those brown dwarfs were speeding along on a trajectory that would carry them out of the galaxy like “runaway” hypervelocity stars observed by astronomers in the last two decades.

参考

• sub-brown dwarf
• red dwarf
• yellow dwarf
• white dwarf
• blue dwarf
• black dwarf