Wolf-Rayet nebula

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A Wolf-Rayet nebula is a nebula which surrounds a Wolf-Rayet star. A subtype of a WR-nebula is the Pinwheel nebula.

There are different types of WR-nebula, based on their formation mechanism:

  • HII regions
  • ejecta-type nebulae
  • wind-blown bubbles
  • neutral hydrogen voids and shells (may be associated with ionized gas)

Examples of this type of nebula include NGC 6888 and NGC 3199.

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