Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006mnras.371.1731t&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 371, Issue 4, pp. 1731-1736.
Astronomy and Astrophysics
Astronomy
6
Methods: Data Analysis: Methods: Statistical: Sun: Helioseismology, Methods: Data Analysis, Methods: Statistical, Sun: Helioseismology
Scientific paper
It is well known that in the power spectrum solar p modes have asymmetric profiles, which depart from a Lorentzian shape. We present a framework to explain the contribution of correlated background noise, from the acoustic source, to this asymmetry. An important prediction is that observed peak asymmetry may differ depending on the way the p-mode observations are made, and on how the data are prepared. Furthermore, if valid, the proposed framework may provide the basis for separating the contribution of the correlated noise from that of the source location and properties.
Chaplin William J.
Elsworth Yvonne
Toutain Thierry
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