# 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 Fr'ed'eric Baudin and S{\'e}bastien Deheuvels and M-A. Dupret and Thierry P. Appourchaux and Richard Scuflaire and Michel Auvergne and Claude Catal{\a} and Eric Michel and Andrea Miglio and Josefina Montalb{\'a}n and Anne A. Thoul and Suzanne Talon and Annie Baglin and Arlette Noels},
journal={Science},
year={2009},
volume={324},
pages={1540 - 1542}
}`
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… Expand

#### Topics from this paper

The excitation of solar-like oscillations in a δ Sct star by efficient envelope convection
The detection of solar-like oscillations in the δ Sct star HD 187547 is reported, implying that surface convection operates efficiently in stars about twice as massive as the Sun, as the ad hoc models predicted. Expand
Solar-like oscillations in massive main-sequence stars - I. Asteroseismic signatures of the driving and damping regions
• Physics
• 2010
Motivated by the detection of stochastically excited modes in the massive star V1449 Aql, which is already known to be a β Cephei star, we theoretically investigate the driving by turbulentExpand
Asteroseismology of High-Mass Stars: New Insights of Stellar Interiors With Space Telescopes
• D. Bowman
• Physics
• Frontiers in Astronomy and Space Sciences
• 2020
Massive stars are important metal factories in the Universe. They have short and energetic lives, and many of them inevitably explode as a supernova and become a neutron star or black hole. In turn,Expand
Magnetic spots on hot massive stars
• Physics
• 2011
Context. Hot luminous stars show a variety of phenomena in their photospheres and winds which still lack clear physical explanation. Among these phenomena are photospheric turbulence, line profileExpand
3D MHD simulations of subsurface convection in OB stars
• Physics
• Proceedings of the International Astronomical Union
• 2010
Abstract During their main sequence evolution, massive stars can develop convective regions very close to their surface. These regions are caused by an opacity peak associated with iron ionization.Expand
Asteroseismology of OB stars with CoRoT
The CoRoT satellite is revolutionizing the photometric study of massive O-type and B-type stars. During its long runs, CoRoT observed the entire main sequence B star domain, from typical hot β CepExpand
Turbulence and magnetic spots at the surface of hot massive stars
• Physics
• Proceedings of the International Astronomical Union
• 2010
Abstract Hot luminous stars show a variety of phenomena in their photospheres and in their winds which still lack clear physical explanations at this time. Among these phenomena are non-thermal lineExpand
The observational signatures of convectively excited gravity modes in main-sequence stars
• Physics
• 2013
We predict the flux and surface velocity perturbations produced by convectively excited gravity modes (g-modes) in main-sequence stars. Core convection in massive stars can excite g-modes toExpand
Giant star seismology
• Physics
• 2016
The internal properties of stars in the red-giant phase undergo significant changes on relatively short timescales. Long near-uninterrupted high-precision photometric timeseries observations fromExpand
Pulsations in hot supergiants
• Physics
• Proceedings of the International Astronomical Union
• 2013
Abstract Massive stars are the cosmic engines that shape and drive our Universe. Many issues such as their formation, their stability and the mass loss effects, are far from being completelyExpand

#### References

SHOWING 1-10 OF 42 REFERENCES
CoRoT Measures Solar-Like Oscillations and Granulation in Stars Hotter Than the Sun
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. Expand
The opacity mechanism in B-type stars – I. Unstable modes in β Cephei star models
• Physics
• 1993
An improved version of the OPAL opacities, with the metal abundance parameter Z having values of 0.02 and 0.03, has been used in a stability survey for models of 7- to 16-M ○ . stars in theExpand
Stochastic excitation of non-radial modes - I. High-angular-degree p modes
• Physics
• 2007
Context. Turbulent motions in stellar convection zones generate acoustic energy, part of which is then supplied to normal modes of the star. Their amplitudes result from a balance between theExpand
Close-up of primary and secondary asteroseismic CoRoT targets and the ground-based follow-up observations
To optimise the science results of the asteroseismic part of the CoRoT satellite mission a complementary simultaneous ground-based observational campaign is organised for selected CoRoT targets. TheExpand
The analysis of indexed astronomical time series – V. Fitting sinusoids to high‐speed photometry
The estimation of the frequency, amplitude and phase of a sinusoid from observations contaminated by correlated noise is considered. It is assumed that the observations are regularly spaced, but mayExpand
Nonradial nonadiabatic stellar pulsations: A numerical method and its application to a $\beta$ Cephei model
A new general method for the computation of nonradial nonadiabatic oscillations of a given stellar model is presented for a linear approximation. A simple and useful modelling of the atmosphere isExpand
Period searching by least squares in sparsely sampled light curves with non-sinusoidal oscillations
• Physics
• 1994
We examine an infrequently used period searching strategy which we find to be well suited to searching for non-sinusoidal oscillations in small sparsely sampled data sets. The method is introducedExpand
An abundance study of the B-type targets for the asteroseismology programme of the CoRoT mission
• Physics
• 2007
We present the very first results of a project aimed at deriving the detailed chemical composition of the B-type stars in the eyes of CoRoT, focusing here on the two primary targets HD 170580 and HDExpand
The Corot Book: Chap. V.5/ Extraction of the photometric information : corrections
We present here the set of corrections that will be applied to the raw data of the CoRoT mission. The aim is to correct the data for instrumental and environmental perturbations as well as toExpand
CLÉS, Code Liégeois d’Évolution Stellaire
Abstract CLÉS is an evolution code recently developed to produce stellar models meeting the specific requirements of studies in asteroseismology. It offers the users a lot of choices in the inputExpand