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.
@article{arxiv.1209.2560,
title = {Do we need a new family of optical-NIR extinction laws?},
author = {J. Maíz Apellániz},
journal= {arXiv preprint arXiv:1209.2560},
year = {2012}
}
Comments
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