Speaker
Description
Near Earth Objects, with their perihelia < 1.3 AU, represent both a potential hazard and a valuable asset for the foreseeable in-space resource utilization, and are hence of great interest to the scientific community. Their physical parameters, such as diameter, albedo and thermal inertia, can be constrained by a number of techniques, with different types of input requirements and levels of uncertainty on the outcome. We are here presenting new results for the well-known Amor-class NEO 1627 Ivar. Thanks to an improved HV absolute magnitude value of 12.43, we compared results obtained from photometric measurements, thermophysical modelling and polarimetry data. Our fits for albedo, consistent with each other, provide a new value of 0.22, which is significantly higher than previous literature values. Our cross-referencing approach validates the result from polarimetry for rapid asteroid property characterization, a technique requiring significantly fewer observations than previously established ones. Future observations will expand this work to a larger sample size, thus increasing further the reliability of this method.
