Bibcode
Eff-Darwich, A.; Régulo, C.; Korzennik, S. G.; Pérez Hernández, F.; Roca Cortés, T.
Bibliographical reference
Astronomische Nachrichten, Vol.329, Issue 5, p.470
Advertised on:
6
2008
Citations
2
Refereed citations
1
Description
Data collected recently by the helioseismic experiments aboard the SOHO
spacecraft have allowed the detection of low degree p-modes with
increasingly lower order n. In particular, the GOLF experiment is
currently able to unambiguously identify low degree modes with
frequencies as low as 1.3 mHz. The detection of p-modes with very low
frequency ({i.e.}, low n), is difficult due to the low signal-to-noise
ratio in this spectral region and its contamination by solar signals
that are not of acoustic origin. To address this problem without using
any theoretical a priory, we propose a methodology that relies only on
the inversion of observed values to define a spectral window for the
expected locations of these low frequency modes. The application of this
method to 2920-day-long GOLF observations is presented and its results
discussed.
Related projects
Helio and Astero-Seismology and Exoplanets Search
The principal objectives of this project are: 1) to study the structure and dynamics of the solar interior, 2) to extend this study to other stars, 3) to search for extrasolar planets using photometric methods (primarily by transits of their host stars) and their characterization (using radial velocity information) and 4) the study of the planetary
Savita
Mathur