Detecting sound-wave-like surface brightness ripples in cluster cores

@inproceedings{Graham2008DetectingSS,
  title={Detecting sound-wave-like surface brightness ripples in cluster cores},
  author={Jonathan Graham and Andrew Christopher Fabian and Jeremy S. Sanders},
  year={2008}
}
We investigate the observational requirements for the detection of sound-wave-like features in galaxy cluster cores. We calculate the effect of projection on the observed wave amplitude, and find that the projection factor depends only weakly on the underlying cluster properties but strongly on the wavelength of the sound waves, with the observed amplitude being reduced by a factor of ∼5 for 5 kpc waves but only by a factor of ∼2 for 25 kpc waves. We go on to estimate the time needed to detect… CONTINUE READING

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