Color–color diagrams as tools for assessment of the variable absorption in high mass X-ray binaries

@article{Grinberg2020ColorcolorDA,
  title={Color–color diagrams as tools for assessment of the variable absorption in high mass X-ray binaries},
  author={Victoria Grinberg and Michael A. Nowak and Natalie Hell},
  journal={arXiv: High Energy Astrophysical Phenomena},
  year={2020}
}
High mass X-ray binaries hold the promise of giving us understanding of the structure of the winds of their supermassive companion stars by using the emission from the compact object as a backlight to evaluate the variable absorption in the structured stellar wind. The wind along the line of sight can change on timescales as short as minutes and below. However, such short timescales are not available to direct measurement of absorption through X-ray spectroscopy with the current generation of X… 
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