2016/10/11 by Jaejin Shin, Jong-Hak Woo, John S. Mulchaey · 3 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Cover (algebra) #Elliptical galaxy #Galaxies: Formation, Evolution, Phenomena #Galaxy #Measure (data warehouse) #Range (aeronautics) #Sample (material) #Surface brightness fluctuation #astro-ph.CO #astro-ph.GA
paper · pdf · doi:10.3847/1538-4365/227/2/31
22 pages, 13 figures, Accepted to ApJS
arxiv created 2016/10/11 · openalex created_date 2016/10/28 · openalex publication_date 2016/12/01 · arxiv updated 2016/12/21 · openalex updated_date 2026/08/05
ABSTRACT 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 β -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. 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.