Solar noise simulations in irradiance |
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| Authors: | B N Andersen T Leifsen T Toutain |
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| Institution: | (1) Norwegian Space Centre, Smestad, PO Box 85, N-0309 Oslo, Norway;(2) Institute of Theoretical Astrophysics, University of Oslo, Blindern, PO Box 1029, N-0315 Oslo, Norway;(3) Space Science Department, ESTEC SC, PO Box 299, NL-2200 AG Noordwijk |
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| Abstract: | The global signature of granulation, meso- and supergranulation is calculated using values for intensities and lifetimes from spatially resolved observations. These simulations are compared with observations from ACRIM, IPHIR and the SOVA-1 photometers. The results indicate that the overall shape of the background signal in the simulations reproduce the observations at low frequency. However when the granulation lifetimes are about 500 seconds the simulated data do not correspond to the observations between 1 and 2 mHz. |
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