Searching for a 10^(5-6) K gas component in clusters of galaxies

Bergerud, Brandon
2014-10-02
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Searching for a 10^(5-6) K gas component in clusters of galaxies

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2014-10-02

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The far ultraviolet background images from the Galaxy Evolution Explorer were used to examine the reported diffuse 105􀀀6 K gas component in galaxy clusters. To remove the scattered starlight from dust component to the UV background the 100 micron images of Schlegel, Finkbeiner, and Davis were used. No confirmations are reported, with upper limits on the UV flux 10􀀀15 erg s􀀀1 cm􀀀2 °A􀀀1. This is many orders of magnitude above what would be expected from a blackbody at 107 K. The upper limits on ultraviolet flux are compared with ultraviolet emission from elliptical galaxies and the cluster’s X-ray luminosity. The inability to completely remove the dust component and the presence of residual emission from bright galaxies limited the results.

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Bergerud, Brandon. (2014). Searching for a 10^(5-6) K gas component in clusters of galaxies. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/166538.

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