Inversion methods in helioseismology and solar tomography (
TLDR
In this paper, a variational formulation of the adiabatic eigenvalue problem for a star's internal structure and dynamics of the Sun can be inferred from observed frequencies of solar oscillations and acoustic travel times.About:
This article is published in Journal of Computational and Applied Mathematics.The article was published on 1999-09-30 and is currently open access. It has received 71 citations till now. The article focuses on the topics: Helioseismology & Sunspot.read more
Citations
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Journal ArticleDOI
Interferometric/daylight seismic imaging
TL;DR: In this paper, the authors generalized the daylight imaging concept to a theory of interferometric seismic imaging (II), which is defined to be any algorithm that inverts correlated seismic data for the reflectivity or source distribution.
Journal ArticleDOI
Acoustic daylight imaging via spectral factorization: helioseismology and reservoir monitoring
James Rickett,Jon F. Claerbout +1 more
TL;DR: In this paper, the authors apply Kolmogoroff spectral factorization to the super-trace, unpack, and find the multidimensional acoustic impulse response of the sun.
Book ChapterDOI
Time-Distance Inversion Methods and Results - (Invited Review)
TL;DR: In this paper, the Fermat principle for acoustic rays and the Born approximation have been used to study the 3D structures and flows in the solar interior, and the results show that the emerging flux ropes travel very quickly through the depth range of the observations.
Journal ArticleDOI
A precise asteroseismic age and radius for the evolved sun-like star kic 11026764
Travis S. Metcalfe,Mário J. P. F. G. Monteiro,Michael Thompson,Michael Thompson,Joanna Molenda-Żakowicz,Thierry Appourchaux,William J. Chaplin,G. Doğan,Patrick Eggenberger,Timothy R. Bedding,H. Bruntt,Orlagh Creevey,Orlagh Creevey,P.-O. Quirion,Dennis Stello,Alfio Bonanno,V. Silva Aguirre,Sarbani Basu,L. Esch,Ning Gai,Ning Gai,M. P. Di Mauro,Alexander G. Kosovichev,I. N. Kitiashvili,Juan Carlos Suárez,A. Moya,L. Piau,Rafael A. García,J. P. Marques,Antonio Frasca,K. Biazzo,S. G. Sousa,Stefan Dreizler,Michael Bazot,Christoffer Karoff,S. Frandsen,Paul Wilson,Timothy M. Brown,Jørgen Christensen-Dalsgaard,R. L. Gilliland,Hans Kjeldsen,Tiago L. Campante,Tiago L. Campante,Stephen T. Fletcher,Rasmus Handberg,Clara Régulo,Clara Régulo,D. Salabert,D. Salabert,Jesper Schou,Graham A. Verner,Jérôme Ballot,A.-M. Broomhall,Yvonne Elsworth,Saskia Hekker,Daniel Huber,Savita Mathur,Roger New,Ian W. Roxburgh,Ian W. Roxburgh,K. H. Sato,Timothy R. White,William J. Borucki,David G. Koch,Jon M. Jenkins +64 more
TL;DR: In this article, the authors used the asteroseismic capabilities of the Kepler mission to determine precise radii and ages for the target stars from their solar-like oscillations.
Journal ArticleDOI
Solar neutrino emission deduced from a seismic model
Sylvaine Turck-Chièze,Sebastien Couvidat,Alexander G. Kosovichev,A. H. Gabriel,Gabrielle Berthomieu,Allan Sacha Brun,Jørgen Christensen-Dalsgaard,Rafael A. García,Douglas Gough,Janine Provost,T. Roca-Cortes,Ian W. Roxburgh,Roger K. Ulrich +12 more
TL;DR: In this paper, a spherically symmetric seismically adjusted model for the Sun is presented, based on sound-speed and density profiles inferred from GOLF and MDI data including these modes, together with recent improvements to stellar model computations.
References
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Book
Quantitative seismology : theory and methods
Keiiti Aki,Paul Richards +1 more
TL;DR: This work has here attempted to give a unified treatment of those methods of seismology that are currently used in interpreting actual data and develops the theory of seismic-wave propagation in realistic Earth models.
Journal ArticleDOI
LSQR: An Algorithm for Sparse Linear Equations and Sparse Least Squares
TL;DR: Numerical tests are described comparing I~QR with several other conjugate-gradient algorithms, indicating that I ~QR is the most reliable algorithm when A is ill-conditioned.
Journal ArticleDOI
The Solar Oscillations Investigation - Michelson Doppler Imager
Philip H. Scherrer,R. S. Bogart,R. I. Bush,J. T. Hoeksema,Alexander G. Kosovichev,Jesper Schou,W. Rosenberg,L. Springer,T. D. Tarbell,A. M. Title,C. J. Wolfson,I. Zayer +11 more
TL;DR: The Michelson Doppler Imager (MDI) as mentioned in this paper was used to probe the interior of the Sun by measuring the photospheric manifestations of solar oscillations, revealing the static and dynamic properties of the convection zone and core.
Book ChapterDOI
The Solar Oscillations Investigation — Michelson Doppler Imager
Philip H. Scherrer,R. S. Bogart,R. I. Bush,J. T. Hoeksema,Alexander G. Kosovichev,Jesper Schou,W. Rosenberg,L. Springer,T. D. Tarbell,A. M. Title,C. J. Wolfson,I. Zayer +11 more
TL;DR: The Solar Oscillations Investigation (SOI) as mentioned in this paper uses the Michelson Doppler Imager (MDI) instrument to probe the interior of the Sun by measuring the photospheric manifestations of solar oscillations.
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