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CoRoT Measures Solar-Like Oscillations and Granulation in Stars Hotter Than the Sun

2008· article· en· 372 citations· W2015785702 on OpenAlex· 10.1126/science.1163004

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Canadian funderA Canadian agency funded it. The work may carry no Canadian affiliation at all.

No Canadian affiliation. An affiliation-only frame — the usual design — would never have seen this work. It is one of the works that make the case for inverting the frame.

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Opus teacher head0.025
GPT teacher head0.235
Teacher spread
0.210 · how far apart the two teachers sit on this one work
Validation status
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Abstract

Oscillations of the Sun have been used to understand its interior structure. The extension of similar studies to more distant stars has raised many difficulties despite the strong efforts of the international community over the past decades. The CoRoT (Convection Rotation and Planetary Transits) satellite, launched in December 2006, has now measured oscillations and the stellar granulation signature in three main sequence stars that are noticeably hotter than the sun. The oscillation amplitudes are about 1.5 times as large as those in the Sun; the stellar granulation is up to three times as high. The stellar amplitudes are about 25% below the theoretic values, providing a measurement of the nonadiabaticity of the process ruling the oscillations in the outer layers of the stars.

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The record

Venue
Science
Topic
Stellar, planetary, and galactic studies
Field
Physics and Astronomy
Canadian institutions
Funders
Natural Sciences and Engineering Research Council of CanadaMcGill UniversityFonds Québécois de la Recherche sur la Nature et les TechnologiesNational Science Foundation
Keywords
PhysicsStarsAstrophysicsOscillation (cell signaling)AstronomyGranulationAmplitudeStellar evolutionConvectionMain sequenceMeteorology
Has abstract in OpenAlex
yes