Revising the merger scenario of the galaxy cluster Abell 1644: a new gas poor structure discovered by weak gravitational lensing

@article{MonteiroOliveira2020RevisingTM,
  title={Revising the merger scenario of the galaxy cluster Abell 1644: a new gas poor structure discovered by weak gravitational lensing},
  author={Rog'erio Monteiro-Oliveira and Lia Doubrawa and R. Machado and Gastao Bierrenbach Lima Neto and M. Castejon and Eduardo Serra Cypriano},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2020},
  volume={495},
  pages={2007-2021}
}
  • Rog'erio Monteiro-Oliveira, Lia Doubrawa, +3 authors Eduardo Serra Cypriano
  • Published 2020
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • The galaxy cluster Abell 1644 ($\bar{z}=0.047$) is known for its remarkable spiral-like X-ray emission. It was previously identified as a bimodal system, comprising the subclusters, A1644S and A1644N, each one centered on a giant elliptical galaxy. In this work, we present a comprehensive study of this system, including new weak-lensing and dynamical data and analysis plus a tailor-made hydrodynamical simulation. The lensing and galaxy density maps showed a structure in the North that could not… CONTINUE READING

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