Photometric Properties of Network and Faculae Derived from HMI Data Compensated for Scattered-Light

摘要: We report on the photometric properties of faculae and network as observed in full-disk, scattered-light corrected images from Helioseismic Magnetic Imager. use a Lucy-Richardson deconvolution routine that corrects an image less than one second. Faculae are distinguished through proximity to active regions. This is first full-disk observations, including center-to-limb variations, reproduce previously only sub-arcsecond resolution, small field-of-view studies, i.e. network, defined by distance regions, exhibit higher contrasts. Specifically, for magnetic flux values larger approximately 300 G, brighter contrast differences increases toward limb, where about twice facular one. For lower values, appear darker faculae. Contrary reports previous we also found exhibits variation. Our results agreement with simulations indicate alone poor proxy features. estimate contribution Total Solar Irradiance variability current Cycle 24 overestimated at least 11\% due not being recognized different. specific method employed this study reconstruct irradiance so caution should be paid when extending it other techniques.