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Bio
My collaborators include X-ray astronomers around the world. We investigate the origin and evolution of large-scale structure in the universe as elucidated by clusters of galaxies. We construct samples of distant clusters of galaxies identified by their X-ray emission. Such samples should be less prone to a bias that may exist in optically selected catalogs. This work requires a synthesis of space and ground-based observations. In recent years we have constrained the dark matter and dark energy density parameters of the universe from the cluster temperature function at moderate redshift.
I am also interested in physical processes occurring in clusters of galaxies. We have made temperature, pressure and entropy maps of bright nearby clusters of galaxies and recently extended these maps to the cluster virial radius. We have also made some of the first high spectral resolution absorption measurements against background AGNs that show the velocity distribution of warm gas associated with the cluster.
I am also interested in physical processes occurring in clusters of galaxies. We have made temperature, pressure and entropy maps of bright nearby clusters of galaxies and recently extended these maps to the cluster virial radius. We have also made some of the first high spectral resolution absorption measurements against background AGNs that show the velocity distribution of warm gas associated with the cluster.
Research Interests
Papers共 281 篇Author StatisticsCo-AuthorSimilar Experts
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BIRTH DEFECTS RESEARCHno. SP11.0 (2020): 842.0-842.0
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Research Notes of the AASno. 2 (2018)
VizieR Online Data Catalog (2017)
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