CHAPLIN, W. J., ELSWORTH, Y., HOWE, R., ISAAK, G. R., MCLEOD, C. P., MILLER, B. A. and NEW, R. (1996). Low-degree, l=4 modes in full-disc BiSON helioseismological data. Monthly notices of the Royal Astronomical Society, 280 (4), 1162-1166.Full text not available from this repository.
We demonstrate that some l=4 acoustic eigenmodes of the Sun are clearly distinguishable in long power spectra generated from Doppler velocity residuals collected in unimaged sunlight by the six-station Birmingham Solar Oscillations Network (BiSON). Modes covering the range n=17 to 21 have been measured in 16-month-long power spectra. They have typical amplitudes - when measured in full-disc Doppler velocity data - of less than similar to 1 cm s(-1) per root bin, and their frequencies have been determined to fractional accuracies of the order of 3 parts in 10(5). The sensitivity of the whole-disc observations to these modes - as implied by the data - appears to be approximately a factor of 2 greater than the theoretical predictions of Christensen-Dalsgaard.
|Research Institute, Centre or Group:||Materials and Engineering Research Institute > Thin Films Research Centre > Nanotechnology Centre for PVD Research|
|Depositing User:||Ann Betterton|
|Date Deposited:||09 Jun 2010 16:12|
|Last Modified:||09 Jun 2010 16:12|
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