2008/08/18 by H. R. Russell, J. S. Sanders, A. C. Fabian · 86 citations
Physics and Astronomy · #Annulus (botany) #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy cluster #Gravitation #Intracluster medium #Spectral line #astro-ph
paper · pdf · doi:10.1111/j.1365-2966.2008.13823.x
published in Monthly Notices of the Royal Astronomical Society 390(3), 1207-1216 (Oxford University Press) · 11 pages, 18 figures, accepted for publication in MNRAS
arxiv created 2008/08/18 · openalex publication_date 2008/10/03 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Temperature, density and abundance profiles of the hot intracluster medium (ICM) are important diagnostics of the complex interactions of gravitational and feedback processes in the cores of galaxy clusters. Deprojection of X-ray data by methods such as projct, which are model dependent, can produce large and unphysical oscillating temperature profiles. Here, we validate a deprojection routine, Direct Spectral Deprojection (dsdeproj), showing that it solves some of the issues inherent to model-dependent deprojection routines. dsdeproj is a model-independent approach, assuming only spherical symmetry, which subtracts projected spectra from each successive annulus to produce a set of deprojected spectra.