Bibcode
Chaplin, W. J.; Jiménez-Reyes, S. J.; Eff-Darwich, A.; Elsworth, Y.; New, R.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 385, Issue 3, pp. 1605-1612.
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4
2008
Citations
1
Refereed citations
1
Description
Frequencies, powers and damping rates of the solar p modes are all
observed to vary over the 11-yr solar activity cycle. Here, we show that
simultaneous variations in these parameters give rise to a subtle
cross-talk effect, which we call the `devil in the detail', that biases
p-mode frequencies estimated from analysis of long power frequency
spectra. We also show that the resonant peaks observed in the power
frequency spectra show small distortions due to the effect. Most of our
paper is devoted to a study of the effect for Sun-as-a-star observations
of the low-l p modes. We show that for these data the significance of
the effect is marginal. We also touch briefly on the likely l dependence
of the effect, and discuss the implications of these results for solar
structure inversions.
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