19 citations · 48 across the 10 of their papers we have counts for
4 papers · 1 filter
A Comparative Study of Halo Mass Estimates from Group Catalogs and Lensing Signals
Xinyue Chen, Weiwei Xu, Ran Li +3
We compare halo mass estimates from three galaxy group catalogs (redMaPPer, Yang21, and Zou21) with those derived from gravitational lensing measurements. Each catalog employs dist…
The measurement of the splashback radius of dark matter halo
Weiwei Xu, Huanyuan Shan, Ran Li +4
In the hierarchical evolution framework of cosmology, larger halos grow through matter accretion and halo mergers. To clarify the halo evolution, we need to define the halo mass an…
Spectroscopic Confirmation of Two X-ray Diffuse and Massive Galaxy Clusters at Low Redshift
Kaiyuan Chen, Weiwei Xu, Linhua Jiang
We present MMT spectroscopic observations of two massive galaxy cluster candidates at redshift that show extended and diffuse X-ray emission in the ROSAT All Sky Survey…
Halo Mass-Concentration Relation at High-Mass End
Weiwei Xu, Huanyuan Shan, Ran Li +6
The concentration-mass (c-M) relation encodes the key information of the assembly history of the dark matter halos, however its behavior at the high mass end has not been measured…