Constraints on turbulent velocity broadening for a sample of clusters, groups and elliptical galaxies using XMM–Newton

@article{Sanders2010ConstraintsOT,
  title={Constraints on turbulent velocity broadening for a sample of clusters, groups and elliptical galaxies using XMM–Newton},
  author={Jeremy S. Sanders and Andrew Christopher Fabian and R. K. Smith Institute of Astronomy and University of Cambridge and Harvard-Smithsonian Center for Astrophysics},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2010},
  volume={410},
  pages={1797-1812}
}
  • Jeremy S. Sanders, Andrew Christopher Fabian, +2 authors Harvard-Smithsonian Center for Astrophysics
  • Published 2010
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • Using the width of emission lines in XMM–Newton Reflection Grating Spectrometer spectra, we place direct constraints on the turbulent velocities of the X-ray emitting medium in the cores of 62 galaxy clusters, groups and elliptical galaxies. We find five objects where we can place an upper limit on the line-of-sight broadening of 500 km s −1 (90 per cent confidence level), using a single thermal component model. Two other objects are lower than this limit when two thermal components are used… CONTINUE READING

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