Solar core rotation: Low-degree solar p-mode rotational splitting results from BiSON

CHAPLIN, W. J., ELSWORTH, Y., HOWE, R., ISAAK, G. R., MCLEOD, C. P., MILLER, B. A. and NEW, R. (1996). Solar core rotation: Low-degree solar p-mode rotational splitting results from BiSON. Monthly notices of the Royal Astronomical Society, 280 (3), 849-853.

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Abstract

In a recent paper (Elsworth et al.), we presented rotational splitting measurements of low-degree, low-frequency solar p modes, which, for the first time, show visually well-separated components at frequencies as low as similar to 1.5 mHz. At the present time, these data appear to rule out a rapidly rotating solar core. Here, we expand our analysis of these data to a full discussion of the statistical properties of the measured splittings. We have considered two fully independent Fourier spectra, generated from Doppler velocity residuals collected by the six-station Birmingham Solar-Oscillations Network (BiSON) between 1992 January 1 and 1994 August 23 (Fourier spectra 16A and 16C from Elsworth et al.). We present formal uncertainties from maximum-likelihood fits to the mode multiplets, analyse and compare the statistical properties of the sets, and search for possible trends in the splitting measures with n.

Item Type:	Article
Research Institute, Centre or Group - Does NOT include content added after October 2018:	Materials and Engineering Research Institute > Advanced Coatings and Composites Research Centre > Nanotechnology Centre for PVD Research
Page Range:	849-853
Depositing User:	Ann Betterton
Date Deposited:	09 Jun 2010 16:10
Last Modified:	18 Mar 2021 09:15
URI:	https://shura.shu.ac.uk/id/eprint/2032

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