Browsing Trinity College Dublin Theses & Dissertations by Author "Zang, Zhiyun"
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An X-ray search for active cores in Local Group galaxies
Zang, Zhiyun (Trinity College (Dublin, Ireland). School of Physics, 2000)The nuclei of galaxies are sometimes sites of very energetic process, resulting in high levels of electromagnetic radiation being emitted. Such active galactic nuclei (AGNs) are thought to be powered by accretion of mass ...