A modified peak-bagging technique for fitting low-$\ell$ solar p-modes

Details A modified peak-bagging technique for fitting low-$\ell$ solar p-modes A modified peak-bagging technique for fitting low-$\ell$ solar p-modes

2008-03-20

arxiv.org/abs/0803.3033v1

Astronomy and Astrophysics

Astrophysics

7 pages, 2 figures. To be published in a conference proceedings

Scientific paper

10.1002/asna.200710978

We introduce a modified version of a standard power spectrum `peak-bagging' technique which is designed to gain some of the advantages that fitting the entire low-degree p-mode power spectrum simultaneously would bring, but without the problems involved in fitting a model incorporating many hundreds of parameters. Employing Monte-Carlo simulations we show that by using this modified fitting code it is possible to determine the true background level in the vicinity of the p-mode peaks. In addition to this we show how small biases in other mode parameters, which are related to inaccurate estimates of the true background, are also consequently removed.

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