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Current measurements of the low and high redshift Universe are in tension if we restrict ourselves to the standard six parameter model of flat ΛCDM. This tension has two parts. First, the Planck… (More)
- Yongen Yu, Douglas H. Rudd, Zhiling Lan, Nickolay Y. Gnedin, Andrey V. Kravtsov, Jingjin Wu
- 2012 IEEE 26th International Parallel and…
- 2012
To effectively model various regions with different resolutions, adaptive mesh refinement (AMR) is commonly used in cosmology simulations. There are two well-known numerical approaches towards the… (More)
- Jingjin Wu, Roberto E. González, +4 authors Yongen Yu
- 2011 IEEE International Conference on Cluster…
- 2011
Cosmological simulations are highly complicated, and it is time-consuming to redesign and reimplement the code for improvement. Moreover, it is a risk to implement any idea directly in the code… (More)
- Yongen Yu, Jingjin Wu, Zhiling Lan, Douglas H. Rudd, Nickolay Y. Gnedin, Andrey V. Kravtsov
- 2013 IEEE 27th International Symposium on…
- 2013
I/O performance is vital for most HPC applications especially those that generate a vast amount of data with the growth of scale. Many studies have shown that scientific applications tend to issue… (More)
In light of the recent BICEP2 B-mode polarization detection, which implies a large inflationary tensor-to-scalar ratio r = 0.2 −0.05, we re-examine the evidence for an extra sterile massive neutrino,… (More)
- M. D. Wyman, Douglas H. Rudd, R. Ali Vanderveld, W. H. Hu
- Physical review letters
- 2014
Current measurements of the low and high redshift Universe are in tension if we restrict ourselves to the standard six-parameter model of flat ΛCDM. This tension has two parts. First, the Planck… (More)
- Andrew R. Zentner, Douglas H. Rudd
- 2007
Recent numerical studies indicate that uncertainties in the treatment of baryonic physics can affect predictions for weak lensing shear power spectra at a level that is significant for several… (More)
We present high-resolution cosmological hydrodynamic simulations of three galaxy clusters employing a two-temperature model for the intracluster medium. We show that electron temperatures in cluster… (More)
- Douglas H. Rudd
- 2013
We introduce the AGORA project, a comprehensive numerical study of well-resolved galaxies within the ΛCDM cosmology. Cosmological hydrodynamic simulations with force resolutions of ∼ 100 proper pc or… (More)
Eulerian hydrodynamical simulations are a powerful and popular tool for modelling fluids in astrophysical systems. In this work, we critically examine recent claims that these methods violate… (More)