A systematic search for X-ray cavities in galaxy clusters, groups, and
  elliptical galaxies
  We perform a comprehensive study of X-ray cavities using a large sample of
X-ray targets selected from the Chandra archive. The sample is selected to
cover a large dynamic range including galaxy clusters, groups, and individual
galaxies. Using $\beta$-modeling and unsharp masking techniques, we investigate
the presence of X-ray cavities for 133 targets that have sufficient X-ray
photons for analysis. We detect 148 X-ray cavities from 69 targets and measure
their properties, including cavity size, angle, and distance from the center of
the diffuse X-ray gas. We confirm the strong correlation between cavity size
and distance from the X-ray center similar to previous studies (i.e., Birzan et
al. 2004; Diehl et al. 2008; Dong et al. 2010). We find that the detection
rates of X-ray cavities are similar among galaxy clusters, groups and
individual galaxies, suggesting that the formation mechanism of X-ray cavities
is independent of environment.
