On the sun's acoustical spectrum

Journal Article · Fri Oct 01 04:00:00 EDT 1976 · Astrophys. J., Lett.; (United States)

DOI:https://doi.org/10.1086/182262· OSTI ID:7141309

Iben, I Jr; Mahaffy, J

Theoretical acoustical spectra for complete solar models have been obtained. Both radial modes and nonradial modes (with l=1,2,3,4,5, and 6) have been calculated for as many as 20 nodes in the eigenfunctions. Comparison with the observations suggests that only radial modes are excited to detectable amplitudes, an exception being a 160 minute nonradial mode which may be excited at the beat frequency of the fundamental and first overtone radial modes. The solar model which gives a period of 58 minutes for the fundamental radial mode is characterized by l/H/sub p/approx.0.76, a neutrino flux of 5.4 SNU, and Z/Xapprox.0.016, a number close to that inferred from an analysis of the Sun's visible light spectrum and of the solar wind. (AIP)

• Research Organization: University of Illinois
• OSTI ID: 7141309
• Journal Information: Astrophys. J., Lett.; (United States), Journal Name: Astrophys. J., Lett.; (United States) Vol. 209:1; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACOUSTICS
ELEMENTARY PARTICLES
FERMIONS
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
OSCILLATIONS
RADIATIONS
SOLAR NEUTRINOS
SOLAR RADIATION
SPECTRA
STAR MODELS
STARS
SUN
VARIATIONS