We present a study S K-edge using high-resolution HETGS {\it Chandra} spectra of 36 low-mas X-ray binaries. For each source, we have estimated column densities for {\rm S}~{\sc i}, {\rm S}~{\sc ii}, {\rm S}~{\sc iii}, {\rm S}~{\sc xiv}, {\rm S}~{\sc xv} and {\rm S}~{\sc xvi} ionic species, which trace the neutral, warm and hot phases of the Galactic interstellar medium. We also estimated column densities for a sample of interstellar dust analogs. We measured their distribution as a function of Galactic latitude, longitude, and distances to the sources. While the cold-warm column densities tend to decrease with the Galactic latitude, we found no correlation with distances or Galactic longitude. This is the first detailed analysis of the sulfur K-edge absorption due to ISM using high-resolution X-ray spectra.
@article{arxiv.2310.11498,
title = {Sulfur X-ray absorption in the local ISM},
author = {Efrain Gatuzz and T. W. Gorczyca and M. F. Hasoglu and E. Costantini and Javier A. García and Timothy R. Kallman},
journal= {arXiv preprint arXiv:2310.11498},
year = {2023}
}