Abstract
Oscillation observations can be used to study non-oscillatory solar phenomena that exhibit Doppler shifts. In this paper we discuss several effects of these phenomena and their associated temporal and spatial power spectra: 1)They limit the signal-to-noise ratio and sometimes detectability of oscillation modes. 2)There is the potential for better understanding and/or detection of solar phenomena: surface rotation, supergranulation, granulation, active regions, giant cells, and mesogranulation. 3)Large-scale convection may spatially modulate oscillation modes, leading to a continuous background spectrum. 4)In regions of the spectrum where we lack the resolution to separate modes, we can determine upper limits for the integrated effects of modes.
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© 1986 D. Reidel Publishing Company, Dordrecht, Holland
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Duvall, T.L., Harvey, J.W. (1986). Solar Doppler Shifts: Sources of Continuous Spectra. In: Gough, D.O. (eds) Seismology of the Sun and the Distant Stars. NATO ASI Series, vol 169. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4608-8_11
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DOI: https://doi.org/10.1007/978-94-009-4608-8_11
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