Sentences with phrase «from faculae»
The effect from faculae is very small, not enough to significantly change the Earth's temperature on their own.
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This object had an almost circular shape, and a light beam came out from its eastern part that crossed the sunspot to the south of the nucleus, producing a shadow on the penumbra that was lost in the large mass of faculae surrounding the eastern extreme of the sunspot.»
Since the solar UV irradiance has no long - term trend, the mechanism for the secular change of TSI must differ from the effect of surface magnetism, as manifested by sunspots, faculae, and network which indeed explain well the intra-cycle variability of both total and spectral irradiance.
Fewer sunspots meant fewer faculae, so less heat from the Sun.
Because our main goal is to reproduce the centennial solar variability and because magnetograms are unavailable for historical time periods, we scale the faculae and the active network filling factors with the sunspot number instead of using filling factors derived from available magnetogram data.
A time series of daily magnetograms and empirical models of the thermal structure of magnetic features (sunspots, faculae) are combined to reconstruct total (and spectral) irradiance from 1996 to 2002.
The origin of a slowly varying irradiance component may derive from changes in the solar faculae and / or in the background solar radiation from solar quiet regions.