106 citations · 255 across the 5 of their papers we have counts for
5 papers
Dark energy and neutrino mass constraints from weak lensing, supernova, and relative galaxy ages
Yan Gong, Tong-Jie Zhang, Tian Lan +1
We use the current weak lensing data to constrain the equation of state of dark energy and the total mass of massive neutrinos . The constraint on would be weak i…
Cosmological Constraints on Invisible Decay of Dark Matter
Yan Gong, Xuelei Chen
The cold dark matter may be in a meta-stable state and decays to other particles with a very long lifetime. If the decaying products of the dark matter are weakly interacting, e.g.…
Does the mass of a black hole decrease due to the accretion of phantom energy
Changjun Gao, Xuelei Chen, Valerio Faraoni +1
According to Babichev et al., the accretion of a phantom test fluid onto a Schwarzschild black hole will induce the mass of the black hole to decrease, however the backreaction was…
Probing the Intrinsic Shape and Alignment of Dark Matter Haloes using SDSS Galaxy Groups
Yougang Wang, Xiaohu Yang, H. J. Mo +4
We study the three-dimensional and projected shapes of galaxy groups in the Sloan Digital Sky Survey Data Release 4, and examine the alignment between the orientation of the centra…
Type Ia supernovae as speed sensors at intermediate redshifts
Pengjie Zhang, Xuelei Chen
The application of large scale peculiar velocity (LSPV), as a crucial probe of dark matter, dark energy and gravity, is severely limited by measurement obstacles. We show that fluc…