23 citations · 71 across the 6 of their papers we have counts for
4 papers · 1 filter
Effect of Dust on Lyman-alpha Photon Transfer in Optically Thick Halo
Yang Yang, Ishani Roy, Chi-Wang Shu +1
We investigate the effects of dust on Lyα photons emergent from an optically thick medium by solving the integro-differential equation of the radiative transfer of resonant photons…
Resonant Scattering and Ly-alpha Radiation Emergent from Neutral Hydrogen Halos
Ishani Roy, Chi-Wang Shu, Li-Zhi Fang
With a state-of-the-art numerical method for solving the integral-differential equation of radiative transfer, we investigate the flux of the Ly photon emergent from an op…
Wouthuysen-Field Coupling in the 21 cm Region Around High Redshift Sources
I. Roy, W. Xu, J. M. Qiu +2
The 21 cm emission and absorption from gaseous halos around the first generation of star depend on the Wouthuysen-Field (W-F) coupling, which relates the spin temperature with the…
A WENO algorithm for radiative transfer with resonant scattering: the time scale of the Wouthuysen-Field Coupling
Ishani Roy, Jing-Mei Qiu, Chi-Wang Shu +1
We develop a numerical solver for the integral-differential equations, which describes the radiative transfer of photon distribution in the frequency space with resonant scattering…