The seismic structure of the sun

• Type: Article in International Scientific Journal
• Date: 1996

Authors

Gough, DO (Author) Other; Kosovichev, AG (Author) Other; Toomre, J (Author) Other; Anderson, E (Author) Other; Antia, HM (Author) Other; Basu, S (Author) Other; Chaboyer, B (Author) Other; Chitre, SM (Author) Other; ChristensenDalsgaard, J (Author) Other; Dziembowski, WA (Author) Other; EffDarwich, A (Author) Other; Elliott, JR (Author) Other; Giles, PM (Author) Other; Goode, PR (Author) Other; Guzik, JA (Author) Other; Harvey, JW (Author) Other; Hill, F (Author) Other; Leibacher, JW (Author) Other; Monteiro, MJPFG (Author) FCUP; Richard, O (Author) Other; Sekii, T (Author) Other; Shibahashi, T (Author) Other; Takata, M (Author) Other; Thompson, MJ (Author) Other; Vauclair, S (Author) Other; Vorontsov, SV (Author) Other

Journal

Title: Science

Vol. 272

Pages: 1296-1300

ISSN: 0036-8075

Publisher: American Association for the Advancement of Science

Indexing

ISI Web of Knowledge - 202 Citations

ISI Web of Science

Scopus - 174 Citations

Scientific classification

CORDIS: Physical sciences > Astronomy

Other information

Authenticus ID: P-001-E92

DOI: 10.1126/science.272.5266.1296

Resumo (PT): Global Oscillation Network Group data reveal that the internal structure of the sun can be well represented by a calibrated standard model. However, immediately beneath the convection zone and at the edge of the energy-generating core, the sound-speed variation is somewhat smoother in the sun than it is in the model. This could be a consequence of chemical inhomogeneity that is too severe in the model, perhaps owing to inaccurate modeling of gravitational settling or to neglected macroscopic motion that may be present in the sun. Accurate knowledge of the sun's structure enables inferences to be made about the physics that controls the sun; for example, through the opacity, the equation of state, or wave motion. Those inferences can then be used elsewhere in astrophysics.

Abstract (EN): Global Oscillation Network Group data reveal that the internal structure of the sun can be well represented by a calibrated standard model. However, immediately beneath the convection zone and at the edge of the energy-generating core, the sound-speed variation is somewhat smoother in the sun than it is in the model. This could be a consequence of chemical inhomogeneity that is too severe in the model, perhaps owing to inaccurate modeling of gravitational settling or to neglected macroscopic motion that may be present in the sun. Accurate knowledge of the sun's structure enables inferences to be made about the physics that controls the sun; for example, through the opacity, the equation of state, or wave motion. Those inferences can then be used elsewhere in astrophysics.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5