Solar p-mode frequencies and their dependence on solar-activity - recent results from the BISON network

ELSWORTH, Y., HOWE, R., ISAAK, G. R., MCLEOD, C. P., MILLER, B. A., NEW, R., SPEAKE, C. C. and WHEELER, S. J. (1994). Solar p-mode frequencies and their dependence on solar-activity - recent results from the BISON network. Astrophysical Journal, 434 (2), 801-806.

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Abstract

We present here high-accuracy determinations of the frequencies of low-l solar p-modes and their solar-cycle dependence. The data were obtained using the Birmingham network of solar spectrometers (BISON). The precision of the measurements is discussed. Our previously published results of a significant frequency shift between solar minimum and solar maximum, apparently independent of l and similar to that found by other workers for intermediate-l modes, is confirmed and extended. This suggests that at most only a small fraction of the variation is due to the solar core. Sets of frequencies at high and low solar activity, and an average corrected for solar-activity effects, are presented. There is now evidence that the solar-activity dependence of the frequencies varies across the 5 minute spectrum.

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:	801-806
Depositing User:	Ann Betterton
Date Deposited:	09 Jun 2010 15:48
Last Modified:	18 Mar 2021 09:15
URI:	https://shura.shu.ac.uk/id/eprint/2067

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