description Xiaohui Fan Overview
Xiaohui Fan is a Chinese-American astronomer and a professor at the University of Arizona's Steward Observatory. He is recognized for his observational work on high-redshift quasars, using large sky surveys like the Sloan Digital Sky Survey to identify some of the most distant known quasars. His research provides observational data for understanding the formation of supermassive black holes and the conditions of the early universe during the epoch of reionization.
help Xiaohui Fan FAQ
How does Xiaohui Fan find very distant quasars?
Fan's surveys use unusual colors in wide-field imaging to identify quasar candidates and then confirm them with spectroscopy. The Sloan Digital Sky Survey has been one of the major sources for this work.
Why are high-redshift quasars important to Xiaohui Fan's research?
Their spectra show how much neutral hydrogen existed in the early intergalactic medium. Objects at redshift around 6 and above are especially useful for studying the end of cosmic reionization.
Which survey is strongly associated with Fan's quasar discoveries?
The Sloan Digital Sky Survey, or SDSS, provided multicolor imaging and spectra used in many of his high-redshift quasar studies. Some of the survey's spectroscopy was obtained with the 2.5-meter Sloan telescope at Apache Point Observatory.
Where does Xiaohui Fan work?
Xiaohui Fan is a professor at the University of Arizona's Steward Observatory. His research combines observational cosmology, quasars, galaxy formation, and the early universe.
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