Gaia Sausage

English

Etymology

Gaia +‎ sausage. From being discovered by the Gaia Mission, a European Space Agency space telescope that maps the stars of the Milky Way, and forming a sausage-shaped plot in velocity-space.

Proper noun

Gaia Sausage

  1. (astronomy) A stellar population within the Milky Way Galaxy that forms a sausage-shaped plot in velocity-space, which is thought to originate from a galaxy merger 10 billion years ago, with the Gaia-Enceladus galaxy, composing mostly Milky Way halo stars.

Synonyms
  • Gaia-Enceladus Sausage
  • Sausage Galaxy Population
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