310 citations · 431 across the 12 of their papers we have counts for
12 papers
Ly Leaks in the Absorption Spectra of High Redshift QSOs
Jiren Liu, Hongguang Bi, Li-Zhi Fang
Spectra of high redshift QSOs show deep Gunn-Peterson absorptions on the blue sides of the \Lya emissions lines. They can be decomposed into components called \Lya leaks, defined t…
Ly Leaks and Reionization
Long-Long Feng, Hong-Guang Bi, Ji-Ren Liu +1
Ly absorption spectra of QSOs at redshifts show complete Gunn-Peterson absorption troughs (dark gaps) separated by tiny leaks. The dark gaps are from the intergalacti…
Is the cosmic UV background fluctuating at redshift z ~ 6 ?
Jiren Liu, Hongguang Bi, Long-Long Feng +1
We study the Gunn-Peterson effect of the photo-ionized intergalactic medium(IGM) in the redshift range 5< z <6.4 using semi-analytic simulations based on the lognormal model. Assum…
Statistical features of 21-cm emission from the epoch between reionization and Gunn-Peterson transparency
Ping He, Jiren Liu, Long-Long Feng +2
We investigate the 21 cm emission from the epoch between reionization z_r and Gunn-Peterson transparency z_{gp}. According to the lognormal model of the thermal history around reio…
The Reionization History in the Lognormal Model
Ji-Ren Liu, Li-Zhi Fang, Long-Long Feng +1
We study the evolution of baryonic gas before the reionization in the lognormal (LN) model of cosmic clustering. We show that the thermal history of the universe around the reioniz…
Hydrogen Clouds before Reionization: a Lognormal Model Approach
Hongguang Bi, Li-zhi Fang, Longlong Feng +1
We study the baryonic gas clouds (the IGM) in the universe before the reionization with the lognormal model which is shown to be dynamcially legitimate in describing the fluctuatio…