Peak asymmetry of solar p modes: a framework to explain the effects of the correlated noise from the acoustic source |
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| Authors: | T Toutain Y Elsworth W J Chaplin |
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| Institution: | School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT |
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| Abstract: | 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. |
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| Keywords: | methods: data analysis methods: statistical Sun: helioseismology |
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