CONICET | Buscador de Institutos y Recursos Humanos

We present a new extensive analysis of the old problem of finding a satisfactory calibrationof the relation between the geometric albedo and some measurable polarization propertiesof the asteroids. To achieve our goals, we use all polarimetric data at our disposal. For thepurposes of calibration, we use a limited sample of objects for which we can be confident toknow the albedo with good accuracy, according to previous investigations of other authors.We find a new set of updated calibration coefficients for the classical slope?albedo relation,but we generalize our analysis and we consider also alternative possibilities, including the useof other polarimetric parameters, one being proposed here for the first time, and the possibilityto exclude from best-fitting analyses the asteroids having low albedos. We also consider apossible parabolic fit of the whole set of data.