Unveiling the environment surrounding low-mass X-ray binary SAX J1808.4–3658

  title={Unveiling the environment surrounding low-mass X-ray binary SAX J1808.4–3658},
  author={Ciro Pinto and Elisa Costantini and Andrew C. Fabian and Jelle S. Kaastra and Jean in 't Zand},
  journal={Astronomy and Astrophysics},
Context. Low-mass X-ray binaries (LMXBs) are a natural workbench to study accretion disk phenomena and optimal background sources to measure elemental abundances in the interstellar medium (ISM). In high-resolution XMM-Newton spectra, the LMXB SAX J1808.4−3658 in the past showed a neon column density significantly higher than expected given its small distance, presumably due to additional absorption from a neon-rich circumstellar medium (CSM). Aims. It is possible to detect intrinsic absorption… 
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