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ASTROSEISMOLOGY [1 record]

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Record 1 2009-05-07

English

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

The study and measurement of acoustic vibrations in stars in order to learn more about stellar structure and evolution.

CONT

Astroseismology, an outgrowth of helioseismology, had to await the development of instruments capable of detecting radial (up and down) movements in a star's surface of a few meters per second over distances measured in light-years. Such instruments are now available and are also used to search for extrasolar planets.

French

Domaine(s)
  • Astrophysique et cosmographie
  • Physique spatiale
DEF

Étude des phénomènes vibratoires observés à l'échelle d'un astre, permettant d'approfondir la connaissance de sa structure et de sa dynamique internes.

OBS

L'astrosismologie recouvre à la fois la sismologie des planètes et la sismologie stellaire. On rencontre parfois le terme «astérosismologie», qui est déconseillé.

Spanish

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