The global oscillation spectrum of the sun. II - The observed low L high N solar p-mode spectrum

Palle, P. L.; Perez, J. C.; Regulo, C.; Roca-Cortés, T.; Issak, G. R.
Referencia bibliográfica

Astronomy and Astrophysics (ISSN 0004-6361), vol. 170, no. 1, Dec. 1986, p. 114-119. Research supported by the Consejo Superior de Investigaciones Cientificas and SERC.

Fecha de publicación:
12
1986
Número de autores
5
Número de autores del IAC
4
Número de citas
28
Número de citas referidas
26
Descripción
Using data from observing seasons 1977 through 1984, an analysis of the low l, high n p-mode solar spectra is made with a 0.9 μHz resolution. Frequencies and amplitudes of modes of l < 3 and 11 < n < 33 are determined for each observing season. No clear variation of the frequencies at the 1 μHz level is found and the amplitudes remain constant to ˜ 20%. The frequency spacings between different modes are compared over the solar cycle, as are the constants in Tassoul's asymptotic formula evaluated for each season: no conclusive variations are found.