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Radiative transfer simulations of cosmic reionization I: methodology and initial results
Hy Trac, Renyue Cen
We present a new hybrid code for large volume, high resolution simulations of cosmic reionization, which utilizes a N-body algorithm for dark matter, physically motivated prescript…
CosmoMHD: A Cosmological Magnetohydrodynamics Code
Shengtai Li, Hui Li, Renyue Cen
In this era of precision cosmology, a detailed physical understanding on the evolution of cosmic baryons is required. Cosmic magnetic fields, though still poorly understood, may re…
Topology of structure in the Sloan Digital Sky Survey: model testing
J. Richard Gott, D. Clay Hambrick, Michael S. Vogeley +6
We measure the three-dimensional topology of large-scale structure in the Sloan Digital Sky Survey (SDSS). This allows the genus statistic to be measured with unprecedented statist…
Origin of the Black Hole Mass - Bulge Velocity Dispersion Relation: A Critical Surface Density For Disk Accretion
Renyue Cen
It is shown that, if gas accretion via a disk onto the central supermassive black hole is efficient only for surface density Sigma >= 10 g/cm^2, the black hole mass - galactic bulg…
Lensing of 21cm Absorption "Halos" of 20-30 First Galaxies
Pengjie Zhang, Zheng Zheng, Renyue Cen
Extended 21cm absorption regions (dubbed ``21cm absorption halos'') around first galaxies at are likely the first distinctive structures accessible to radio observations…
The History of Cosmological Star Formation: Three Independent Approaches and a Critical Test Using the Extragalactic Background Light
Kentaro Nagamine, Jeremiah P. Ostriker, Masataka Fukugita +1
Taking three independent approaches, we investigate the simultaneous constraints set on the cosmic star formation history from various observations, including stellar mass density…