Abstract
We present a study of the impact of a ground-based, multi-station window function on estimates of the power and damping of low-l solar p modes extracted from fits to resonant structure in the frequency domain. The window functions come from six-site observations made by the Birmingham Solar-Oscillations Network (BISON) over the 10-yr period beginning 1991 January. Two strategies were adopted. In the first, we used an 800-d time series of continuous observations made by the GOLF instrument on board the ESA/NASA SOHO satellite. These data were modulated by a variety of BISON window functions, with fractional duty cycles ranging from similar to0.4 to similar to0.8, and the resulting series analyzed. In the second we generated artificial 10-yr time series and studied the effect on these of the complete BISON window.
Original language | English |
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Pages (from-to) | 305-314 |
Number of pages | 10 |
Journal | Astronomy and Astrophysics |
Volume | 398 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 2003 |
Keywords
- methods : data analysis
- Sun : oscillations