Bibcode
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
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.