• DOI:10.1126/science.1171913
• Corpus ID: 6950829

Solar-Like Oscillations in a Massive Star

@article{Belkacem2009SolarLikeOI,
  title={Solar-Like Oscillations in a Massive Star},
  author={K'evin Belkacem and R'eza Samadi and Marie Jo Goupil and Laure Lefevre and Frédéric Baudin and S{\'e}bastien Deheuvels and M-A. Dupret and Thierry Appourchaux and Richard Scuflaire and Michel Auvergne and Claude Catal{\`a} and Eric Michel and Andrea Miglio and Josefina Montalb{\'a}n and Anne Thoul and Suzanne Talon and Annie Baglin and Arlette Noels},
  journal={Science},
  year={2009},
  volume={324},
  pages={1540 - 1542}
}

• K. Belkacem, R. Samadi, +15 authors A. Noels
• Published 19 June 2009
• Physics, Geology
• Science

Star Gazing Seismology of stars provides a unique insight into physical mechanisms taking place in their interior. Like the Sun, some stars have low-amplitude pulsations that are excited by turbulent convection in their outer layers. Belkacem et al. (p. 1540), using data gathered by the CoRoT satellite, report on low-amplitude, solar-like oscillations in a massive star that undergoes radial pulsations as a result of expanding and contracting layers in its interior. The finding opens the possibility of probing the interiors of this type of massive star, which can be the progenitors of supernovae. A huge star has been discovered that shows a variety of regular patterns of pulsation. Seismology of stars provides insight into the physical mechanisms taking place in their interior, with modes of oscillation probing different layers. Low-amplitude acoustic oscillations excited by turbulent convection were detected four decades ago in the Sun and more recently in low-mass main-sequence stars. Using data gathered by the Convection Rotation and Planetary Transits mission, we report here on the detection of solar-like oscillations in a massive star, V1449 Aql, which is a known large-amplitude (β Cephei) pulsator.