Diffuse ionized gas

来自Shiyin's note
Shen（讨论 | 贡献）2016年3月8日 (二) 07:52的版本 （→‎银河系中的DIG）
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银河系中的DIG

  • Referred to as the Reynolds layer, or warm ionized medium (WIM);
  • This warm (10^4 K), diffuse (n ~ 0.2 cm~3) gas fills 20% of the disk volume and accounts for most of the mass of ionized gas.
  • In terms of energetics, the Galactic WIM requires at least 10^42 ergs s~1 to remain ionized. This power is more than can be comfortably supplied by supernova shocks, but significantly less than the Lyman continuum luminosity of massive stars.
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取自“http://202.127.29.3/~shen/wiki/index.php?title=Diffuse_ionized_gas&oldid=2120”