1.3k citations · 6.2k across the 81 of their papers we have counts for
13 papers · 1 filter
Learning to Predict the Cosmological Structure Formation
Siyu He, Yin Li, Yu Feng +4
Matter evolved under influence of gravity from minuscule density fluctuations. Non-perturbative structure formed hierarchically over all scales, and developed non-Gaussian features…
Disconnected Covariance of 2-point Functions in Large-Scale Structure
Yin Li, Sukhdeep Singh, Byeonghee Yu +2
Optimal analyses using the 2-point functions of large-scale structure probes require accurate covariance matrices. A covariance matrix of the 2-point function comprises the disconn…
UNIT project: Universe -body simulations for the Investigation of Theoretical models from galaxy surveys
Chia-Hsun Chuang, Gustavo Yepes, Francisco-Shu Kitaura +13
We present the UNIT -body cosmological simulations project, designed to provide precise predictions for nonlinear statistics of the galaxy distribution. We focus on characterizi…
HOD modelling of high redshift galaxies using the BLUETIDES simulation
Aklant Kumar Bhowmick, Duncan Campbell, Tiziana DiMatteo +1
We construct halo occupation distribution (HOD) models of high redshift () galaxies with using the BlueTides hydrodynamic simulation suite,…
A tiny host galaxy for the first giant black hole: quasar in BlueTides
Ananth Tenneti, Stephen M. Wilkins, Tiziana Di Matteo +2
The most distant known quasar recently discovered by Bañados et al. (2018) is at (690 Myr after the Big Bang), at the dawn of galaxy formation. We explore the host galaxy o…
Gas outflows from the z= 7.54 quasar : predictions from the BlueTides Simulation
Yueying Ni, Tiziana Di Matteo, Yu Feng +2
Many theoretical models predict that quasar driven outflows account for the observed quenching of star formation in massive galaxies. There is growing observational evidence for qu…
Cosmological Reconstruction From Galaxy Light: Neural Network Based Light-Matter Connection
Chirag Modi, Yu Feng, Uros Seljak
We present a method to reconstruct the initial conditions of the universe using observed galaxy positions and luminosities under the assumption that the luminosities can be calibra…
A gradient based method for modeling baryons and matter in halos of fast simulations
Biwei Dai, Yu Feng, Uros Seljak
Fast N-body PM simulations with a small number of time steps such as FastPM or COLA have been remarkably successful in modeling the galaxy statistics, but their lack of small scale…
Exploring the posterior surface of the large scale structure reconstruction
Yu Feng, Uros Seljak, Matias Zaldarriaga
The large scale structure (LSS) of the universe is generated by the linear density gaussian modes, which are evolved into the observed nonlinear LSS. The posterior surface of the m…
Primordial non-Gaussianities and zero bias tracers of the Large Scale Structure
Emanuele Castorina, Yu Feng, Uros Seljak +1
We develop a new method to constraint primordial non-Gaussianities of the local kind using unclustered tracers of the Large Scale Structure. We show that in the limit of low noise,…
An Efficient and Accurate Hybrid Method for Simulating Non-Linear Neutrino Structure
Simeon Bird, Yacine Ali-Haïmoud, Yu Feng +1
We present an efficient and accurate method for simulating massive neutrinos in cosmological structure formation simulations, together with an easy to use public implementation. Ou…
The Epoch of IGM heating by early sources of X-rays
Marius Berge Eide, Luca Graziani, Benedetta Ciardi +3
Observations of the 21 cm line from neutral hydrogen indicate that an Epoch of Heating (EoH) might have preceded the later Epoch of Reionization (EoR). Here we study the effects on…
BlueTides simulation: establishing black hole-galaxy relations at high-redshift
Kuan-Wei Huang, Tiziana Di Matteo, Aklant K. Bhowmick +2
The scaling relations between the mass of supermassive black holes () and host galaxy properties (stellar mass, , and velocity dispersion, ), provide a l…