66 citations · 786 across the 42 of their papers we have counts for
6 papers · 1 filter
The parameter-free Finger-Of-God model and its application to 21cm intensity mapping
Jiajun Zhang, André A. Costa, Bin Wang +3
Using the galaxy catalog built from ELUCID N-body simulation and the semi-analytical galaxy formation model, we have built a mock HI intensity mapping map. We have implemented the…
Elemental abundances distributions in (R, ) plane with LAMOST DR5 and Gaia DR2
Xilong Liang, Jingkun Zhao, Yuqin Chen +4
Since Gaia DR2 was released, many velocity structures in the disk have been revealed such as large scale ridge-like patterns in the phase space. Both kinematic information and stel…
Testing interacting dark matter and dark energy model with cosmological data
Gong Cheng, Yin-Zhe Ma, Fengquan Wu +2
We investigate the model of dark matter-dark energy (DM-DE) interaction with coupling strength proportional to the multiplication of dark sector densities with different power indi…
Stellar chromospheric activity and age relation from open clusters in the LAMOST Survey
Jiajun Zhang, Jingkun Zhao, Terry D. Oswalt +5
We identify member stars of more than 90 open clusters in the LAMOST survey. With the method of Fang et al.(2018), the chromospheric activity (CA) indices logR'CaK for 1091 member…
Weak equivalence principle, swampland and tension with fast single radio bursts FRB 180924 and FRB 190523
Deng Wang, Zhaozhou Li, Jiajun Zhang
Two new fast single radio bursts FRB 180924 and FRB 190523 well localized to massive galaxies have opened a new window to probe and characterize how cosmic baryons are allocated be…
Towards a Model-Independent Measurement of the Halo Mass Function with Observables
Fuyu Dong, Jun Zhang, Xiaohu Yang +2
In the CDM paradigm, the halo mass function is a sensitive probe of the cosmic structure. In observations, halo mass is typically estimated from its relation with other observables…