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单词 dMe star
释义
dMe star

Astronomy
  • An M-type red-dwarf star whose spectrum displays emission lines (hence the suffix ‘e’) due to hydrogen (Ηα‎) and calcium (H and K lines). This activity indicates enhanced coronal emission (a dMe star is usually also an X-ray source) as a result of the powerful magnetic fields generated by the deep convection zone in the star.


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