255 citations · 366 across the 11 of their papers we have counts for
11 papers
Impact of light sterile neutrinos on cosmological large scale structure
Rui Hu, Ming-chung Chu, Shek Yeung +1
Sterile neutrinos with masses on the scale are promising candidates to account for the origin of neutrino mass and the reactor neutrino anomalies. The mixing between…
Measuring the Hubble constant through the galaxy pairwise peculiar velocity
Wangzheng Zhang, Ming-chung Chu, Shihong Liao +2
The Hubble constant , the current expansion rate of the universe, is one of the most important parameters in cosmology. The cosmic expansion regulates the mutually approaching…
Refitting cosmological data with neutrino mass and degeneracy
Shek Yeung, Wangzheng Zhang, Ming-chung Chu
A simple and natural extension of the standard Lambda cold dark matter (CDM) model is to allow relic neutrinos to have finite chemical potentials. We confront this CDM mod…
Measuring neutrino mass and asymmetry with matter pairwise velocities
Wangzheng Zhang, Ming-chung Chu, Rui Hu +2
Neutrinos are believed to be the most abundant fermions in the Universe, but their masses are unknown, except for being non-zero but much smaller than other fermions. Cosmological…
Is the Observable Universe Consistent with the Cosmological Principle?
Pavan Kumar Aluri, Paolo Cea, Pravabati Chingangbam +20
The Cosmological Principle (CP) -- the notion that the Universe is spatially isotropic and homogeneous on large scales -- underlies a century of progress in cosmology. It is conven…
Directional Variations of Cosmological Parameters from the Planck CMB Data
Shek Yeung, Ming-Chung Chu
Recent observations suggest that there are violations of the isotropy of the universe at large scales, an important part of the cosmological principle. In this paper, we use the Co…
Relic Neutrino Degeneracies and Their Impact on Cosmological Parameters
Shek Yeung, King Lau, M. -C. Chu
In the standard CDM model, neutrinos are treated as radiation, with their masses and possible degeneracy ignored. In this paper, we compute the impact of a finite relic neutrino…
Effects of neutrino mass and asymmetry on cosmological structure formation
Zhichao Zeng, Shek Yeung, Ming-Chung Chu
Light but massive cosmological neutrinos do not cluster significantly on small scales, due to their high thermal velocities. With finite masses, cosmological neutrinos become part…
Evidence of Neutrino Enhanced Clustering in a Complete Sample of Sloan Survey Clusters, Implying eV
Razieh Emami, Tom Broadhurst, Pablo Jimeno +7
The clustering amplitude of 7143 clusters from the Sloan Digital Sky Survey (SDSS) is found to increase with cluster mass, closely agreeing with the Gaussian random field hypothesi…
Cosmic histories of star formation and reionization: An analysis with a power-law approximation
Yun-Wei Yu, K. S. Cheng, M. C. Chu +1
With a simple power-law approximation of high-redshift () star formation history, i.e., , we investigate the reionization of interga…
Cosmic Microwave Background constraints of decaying dark matter particle properties
S. Yeung, M. H. Chan, M. -C. Chu
If a component of cosmological dark matter is made up of massive particles - such as sterile neutrinos - that decay with cosmological lifetime to emit photons, the reionization his…