Possible depletion of metals into dust grains in the core of the Centaurus cluster of galaxies

  title={Possible depletion of metals into dust grains in the core of the Centaurus cluster of galaxies},
  author={Kiran Lakhchaura and François Mernier and Norbert Werner},
  journal={Astronomy \& Astrophysics},
We present azimuthally averaged metal abundance profiles from a full, comprehensive, and conservative re-analysis of the deep (∼800 ks total net exposure) Chandra/ACIS-S observation of the Centaurus cluster core (NGC 4696). After carefully checking various sources of systematic uncertainties, including the choice of the spectral deprojection method, assumptions about the temperature structure of the gas, and uncertainties in the continuum modeling, we confirm the existence of a central drop in… 

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