Do we need a new family of optical-NIR extinction laws?
arXiv:1209.2560
Abstract
I consider whether we can significantly improve the Cardelli et al. (1989) family of extinction laws using new data and techniques. There are six different aspects that need to be treated: The use of monochromatic quantities, the three different wavelength regimes (NIR, optical and UV), the sample, and the photometric calibration. Excluding the behavior in the NIR and UV, I discuss the other four aspects and propose a new family of extinction laws derived from VLT/FLAMES and HST/WFC3 data.
Contribution presented at the tenth scientific meeting of the Spanish Astronomical Society, held in Valencia, Spain, in July 2012. To appear in SEA X, the proceedings of that conference