37 citations · 178 across the 10 of their papers we have counts for
10 papers
Revisiting Chaplygin gas cosmologies with the recent observations of high-redshfit quasars
Jie Zheng, Shuo Cao, Yujie Lian +3
In this paper, we use the latest observations of quasars covering the redshift range of to investigate a series of Chaplygin gas models as candidates for unified dark…
Finding Quasars behind the Galactic Plane. II. Spectroscopic Identifications of 204 Quasars at
Yuming Fu, Xue-Bing Wu, Linhua Jiang +21
Quasars behind the Galactic plane (GPQs) are important astrometric references and valuable probes of Galactic gas, yet the search for GPQs is difficult due to severe extinction and…
Investigating the dynamical models of cosmology with recent observations and upcoming gravitational-wave data
Jie Zheng, Yun Chen, Tengpeng Xu +1
We explore and compare the capabilities of the recent observations of standard cosmological probes and the future observations of gravitational-wave (GW) standard sirens on constra…
A new way to explore cosmological tensions using gravitational waves and strong gravitational lensing
Meng-Di Cao, Jie Zheng, Jing-Zhao Qi +2
In recent years, a crisis in the standard cosmology has been caused by inconsistencies in the measurements of some key cosmological parameters, Hubble constant and cosmic cur…
Diagnosing the cosmic coincidence problem and its evolution with recent observations
Jie Zheng, Yun Chen, Tengpeng Xu +1
In the framework of a phenomenological cosmological model with the assumption of ( and are the energy densities of dark energy and matter,…
Comparisons of Different Fitting Methods for the Physical Parameters of A Star Cluster Sample of M33 with Spectroscopy and Photometry
Zhou Fan, Bingqiu Chen, Xiaoying Pang +8
Star clusters are good tracers for formation and evolution of galaxies. We compared different fitting methods by using spectra (or by combining photometry) to determine the physica…
Investigating the relationship between cosmic curvature and dark energy models with the latest supernova sample
Chao Gao, Yun Chen, Jie Zheng
We investigate the relationship between the cosmic curvature and the model of dark energy (hereafter DE) with the recent Type Ia supernovae (hereafter SNe Ia) data, i.e., the Panth…
Two New "Turn-off" Changing-look Active Galactic nuclei and Implication on "Partially Obscured" AGNs
J. Wang, D. W. Xu, Y. Wang +3
We here report a spectroscopic identification of two new changing-look AGNs (CL-AGNs): SDSS\,J104705.16+544405.8 and SDSS\,J120447.91+170256.8 both with a "turn-off" type transitio…
An optical and X-ray study of the contact binary, BH Cassiopeiae
Junhui Liu, Ali Esamdin, Yu Zhang +10
We present the revised and high quality CCD time series observations in 2017 and 2018 of the W UMa-type contact binary BH~Cas. The combination of our new determinations of minimum…
Transiting Exoplanet Monitoring Project (TEMP). III. On the Relocation of the Kepler-9~b Transit
Songhu Wang, Dong-Hong Wu, Brett C. Addison +24
The Kepler-9 system harbors three known transiting planets. The system holds significant interest for several reasons. First, the outer two planets exhibit a period ratio that is c…