Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

The Current State of Solar Modeling

Christensen-Dalsgaard1, Dappen, Ajukov

  • 1J. Christensen-Dalsgaard and S. Basu are with Theoretical Astrophysics Center and Institute of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark. W. Dappen and E. J. Rhodes Jr. are with the Department of Physics and Astronomy, University of Southern California, Los Angeles, CA 90089, USA. S. V. Ajukov is with the Sternberg Astronomical Institute, Moscow, Russia. E. R. Anderson, J. W. Harvey, F. Hill, and J. W. Leibacher are with the National Solar Observatory, National Optical Astronomy Observatories, Tucson, AZ 85726, USA. H. M. Antia and S. M. Chitre are with the Tata Institute of Fundamental Research, Bombay, India. V. A. Baturin, I. W. Roxburgh, and M. J. Thompson are with the Astronomy Unit, Queen Mary and Westfield College, London E1 4NS, UK. G. Berthomieu, P. Morel, and J. Provost are with the Observatoire de la Cote d'Azur, Nice, France. B. Chaboyer is with CITA, University of Toronto, Toronto, Canada. A. N. Cox and J. A. Guzik are with Los Alamos National Laboratory, Los Alamos, NM 87545, USA. P. Demarque is with the Department of Astronomy, Yale University, New Haven, CT 06520, USA. J. Donatowicz and G. Houdek are with the Institut fur Astronomie, Universitat Wien, Vienna, Austria. W. A. Dziembowski is with the Copernicus Center, Warsaw, Poland. M. Gabriel is with the Institut d'Astrophysique, Universite de Liege, Liege, Belgium. D. O. Gough is with the Institute of Astronomy, University of Cambridge, Cambridge, UK. D. B. Guenther is with the Department of Astronomy and Physics, Saint Mary's University, Halifax, Nova Scotia, Canada. C. A. Iglesias and F. J. Rogers are with the Lawrence Livermore National Laboratory, Livermore, CA 94550, USA. A. G. Kosovichev is with Center for Space Science and Astrophysics, Stanford University, Stanford, CA 94305, USA. C. R. Proffitt is with Computer Sciences Corporation, Goddard Space Flight Center, Greenbelt, MD 20771, USA. J. Reiter is with the Mathematisches Institut, Technische Universitat Munchen, Munich, Germany. R. K. Ulrich is with the Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA.

Science (New York, N.Y.)
|May 31, 1996
PubMed

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The Potential of SERMs for Reducing the Risk of Coronary Heart Disease.

Trends in endocrinology and metabolism: TEM·2001
Same author

On an Antiessential Political Ecology.

Current anthropology·1999
Same author

Identification of a disturbance signal in larval red-legged frogs, Rana aurora.

Animal behaviour·1999
Same author

A reply

European heart journal·1999
Same author

Analysis of the functional coupling between Calmodulin's calcium binding and peptide recognition properties

Biochemistry·1999
Same author

Continuous deformation versus faulting through the continental lithosphere of new zealand

Science (New York, N.Y.)·1999
Summary
This summary is machine-generated.

Helioseismic data from the Global Oscillation Network Group (GONG) reveal subtle errors in solar models, suggesting discrepancies beneath the convection zone. These findings may impact stellar evolution calculations and estimates of the galaxy's age.

Area of Science:

  • * Solar physics and helioseismology.
  • * Stellar interior modeling.
  • * Thermodynamic and radiative properties of stellar matter.

Background:

  • * Helioseismic experiments, including the Global Oscillation Network Group (GONG) project, are crucial for testing solar interior models.
  • * Current models generally agree with helioseismic inferences, explaining the solar neutrino flux discrepancy.
  • * Models depend on accurate thermodynamic and radiative properties of matter under extreme solar conditions.

Purpose of the Study:

  • * To test the accuracy of current solar interior models using helioseismic data.
  • * To identify subtle discrepancies in models that may not be apparent from broader observations.
  • * To investigate the implications of these discrepancies for understanding stellar interiors and evolution.

Related Experiment Videos

Main Methods:

  • * Analysis of data from the Global Oscillation Network Group (GONG) and other helioseismic experiments.
  • * Comparison of helioseismic inferences with predictions from established solar interior models.
  • * Investigating thermodynamic and radiative properties of matter under extreme conditions.

Main Results:

  • * Helioseismic data confirm agreement with models regarding solar neutrino fluxes.
  • * GONG data reveal subtle errors in models, specifically an excess sound speed beneath the convection zone.
  • * Discrepancies suggest unaddressed physical effects in current stellar models.

Conclusions:

  • * Subtle errors in solar models, indicated by sound speed anomalies, require further investigation.
  • * These discrepancies may point to weak mixing in stellar interiors, a factor potentially affecting stellar evolution.
  • * Accurate stellar evolution models are critical for reliable estimates of the galaxy's age.