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ONDE GRAVITATIONNELLE PRIMORDIALE [2 records]

Record 1 2023-10-17

English

Subject field(s)
  • Astrophysics and Cosmography
  • Space Physics
CONT

... the big bang does not fit all astronomers' observations. The distribution of matter across space is too uniform to have come from the Big Bang as originally conceived. So in the 1970s, cosmologists postulated a sudden enlargement of the universe, called inflation, that occurred in the first minuscule fraction of a second after the Big Bang ... Only inflation can amplify the primordial gravitational wave signal enough to make it detectable. If primordial gravitational waves have been seen, it means that inflation must have taken place.

French

Domaine(s)
  • Astrophysique et cosmographie
  • Physique spatiale

Spanish

Save record 1

Record 2 2022-01-07

English

Subject field(s)
  • Astrophysics and Cosmography
  • Space Physics
CONT

Primordial gravitational waves, produced nearly 13.8 billion years ago, still echo through the universe today. But they are drowned out by the crackle of gravitational waves produced by more recent events, such as colliding black holes and neutron stars.

French

Domaine(s)
  • Astrophysique et cosmographie
  • Physique spatiale

Spanish

Save record 2

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