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Paper: Variable Stars and Non-standard Photometric Data
Volume: 364, The Future of Photometric, Spectrophotometric, and Polarimetric Standardization
Page: 603
Authors: Olah, K.; Sterken, C.
Abstract: We discuss the effects of using unfiltered and non-standard photometric data for studying different types of variable stars, and conclude that filterless photometry is of very limited value in most cases. Standardization is not a trivial task, and invalid transformations result in spurious variability of the object. Such errors can hardly be discovered. An improperly selected comparison star may add additional variability due to the mistreatment of atmospheric extinction. When solving eclipsing-binary lightcurves, poorly calibrated data (or data not standardized at all) lead to erroneous results.
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