Frequencies and splittings of low-degree solar P modes: results of the Luminosity Oscillations Imager.

Bibcode
1995A&A...294L..13A
Appourchaux, T.; Toutain, T.; Telljohann, U.; Jimenez, A.; Rabello-Soares, M. C.; Andersen, B. N.; Jones, A. R.
Bibliographical reference

Astronomy and Astrophysics 294L, L13-L16 (1995)

Advertised on:
2
1995
Number of authors
7
IAC number of authors
2
Citations
33
Refereed citations
21
Description
The Luminosity Oscillations Imager is a part of the VIRGO instrument to be flown aboard the Solar and Heliospheric Observatory in mid 1995. Using a ground-based version of the instrument, we have detected low-l modes with a time series spanning 163 days. The low resolution capability of the instrument allows the identification of individual tesseral orders for l=2 to 5. The data reduction method prevents from observing the l=0 modes, and reduces the amplitude of the l=1 modes with m=+/-1. The frequencies and, for the first time, the linear component of the mode splitting (a_1_) are given for l=2 to 5 for each order n. The frequencies and the a_1_ are obtained by fitting simultaneously the 2l+1 spectra using maximum likelihood estimators. The splittings are compared with other published values.
Type
Refereed
Solar oscillations

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