Open AccessPeak asymmetry of solar p modes: a framework to explain the effects of the correlated noise from the acoustic source
Author(s) -
Toutain T.,
Elsworth Y.,
Chaplin W. J.
Publication year - 2006
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2006.10798.x
Subject(s) - physics , asymmetry , noise (video) , mode (computer interface) , astrophysics , computational physics , statistical physics , quantum mechanics , artificial intelligence , computer science , image (mathematics) , operating system
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.