106 citations · 726 across the 24 of their papers we have counts for
24 papers
Standardizing reverberation-mapped H active galactic nuclei using time-averaged radiusluminosity relations with 5100\,Å\,, broad H, and narrow \OIII\ luminosities
Shulei Cao, Amit Kumar Mandal, Michal Zajaček +1
Active galactic nuclei (AGN) have been studied as alternate probes in cosmology due to their large and stable luminosities and broad redshift range. Previously it was shown that hi…
Standardizing a larger, higher-quality, homogeneous sample of reverberation-mapped H active galactic nuclei using the broad-line region radius-luminosity relation
Shulei Cao, Amit Kumar Mandal, Michal Zajaček +1
We present a high-quality, homogeneous sample of 157 H reverberation-mapped active galactic nuclei (RM AGNs) spanning redshifts , which is approximat…
Testing the consistency of new Amati-correlated gamma-ray burst dataset cosmological constraints with those from better-established cosmological data
Shulei Cao, Bharat Ratra
Gamma-ray bursts (GRBs) are promising cosmological probes for exploring the Universe at intermediate redshifts (). We analyze 151 Fermi-observed long GRBs (datasets A123 and A28…
Standardizing reverberation-mapped H and H active galactic nuclei using radius--luminosity relations involving monochromatic and broad H luminosities
Shulei Cao, Amit Kumar Mandal, Michal Zajaček +2
We test the standardizability of a homogeneous sample of 41 lower-redshift () active galactic nuclei (AGNs) reverberation-mapped (RM) using the broad H…
Testing the standardizability of, and deriving cosmological constraints from, a new Amati-correlated gamma-ray burst data compilation
Shulei Cao, Bharat Ratra
By using gamma-ray burst (GRB) data to simultaneously constrain Amati correlation parameters and cosmological parameters in six spatially-flat and nonflat dark energy cosmological…
Low- and high-redshift H II starburst galaxies obey different luminosity-velocity dispersion relations
Shulei Cao, Bharat Ratra
To determine whether or not H II starburst galaxies (H IIG) are standardizable candles, we study the correlation between the H luminosity () and the velocity dispersion ()…
Effects of heterogeneous data sets and time-lag measurement techniques on cosmological parameter constraints from MgII and CIV reverberation-mapped quasar data
Shulei Cao, Michal Zajaček, Bożena Czerny +2
Previously, we demonstrated that MgII and CIV reverberation-mapped quasars (RM QSOs) are standardizable and that the cosmological parameters inferred using the broad-line region ra…
, , and other constraints from lower-redshift, non-CMB, expansion-rate data
Shulei Cao, Bharat Ratra
We use updated Type Ia Pantheon+ supernova, baryon acoustic oscillation, and Hubble parameter (now also accounting for correlations) data, as well as new reverberation-measured C I…
Accretion disks, quasars and cosmology: meandering towards understanding
Bozena Czerny, Shulei Cao, Vikram Kumar Jaiswal +11
As Setti & Woltjer noted back in 1973, quasars could be used to construct the Hubble diagram but the actual application was not that straightforward. It took years to implement the…
Standardizing reverberation-measured C IV time-lag quasars, and using them with standardized Mg II quasars to constrain cosmological parameters
Shulei Cao, Michal Zajaček, Swayamtrupta Panda +3
We use 38 C IV quasar (QSO) reverberation-mapped (RM) observations, which span eight orders of magnitude in luminosity and the redshift range , to simul…
Using lower-redshift, non-CMB, data to constrain the Hubble constant and other cosmological parameters
Shulei Cao, Bharat Ratra
We use updated Hubble parameter and baryon acoustic oscillation data, as well as other lower-redshift Type Ia supernova, Mg II reverberation-measured quasar, quasar angular size, H…
Gamma-ray burst data strongly favor the three-parameter fundamental plane (Dainotti) correlation relation over the two-parameter one
Shulei Cao, Maria Dainotti, Bharat Ratra
Gamma-ray bursts (GRBs), observed to redshift , are potential probes of the largely unexplored part of the early Universe. Thus, finding relevant relations a…
Potentialities of Hubble parameter and expansion rate function data to alleviate Hubble tension
Yingjie Yang, Xuchen Lu, Lei Qian +1
Taking advantage of Gaussian process (GP), we obtain an improved estimate of the Hubble constant, km s Mpc, using Hubble parameter [] from co…
Standardizing Platinum Dainotti-correlated gamma-ray bursts, and using them with standardized Amati-correlated gamma-ray bursts to constrain cosmological model parameters
Shulei Cao, Maria Dainotti, Bharat Ratra
We show that the Platinum gamma-ray burst (GRB) data compilation, probing the redshift range , obeys a cosmological-model-independent three-parameter fundame…
Standardizing Dainotti-correlated gamma-ray bursts, and using them with standardized Amati-correlated gamma-ray bursts to constrain cosmological model parameters
Shulei Cao, Narayan Khadka, Bharat Ratra
We show that each of the three Dainotti-correlated gamma-ray burst (GRB) data sets recently compiled by Wang et al. and Hu et al., that together probe the redshift range $0.35 \leq…
Cosmological constraints from HII starburst galaxy, quasar angular size, and other measurements
Shulei Cao, Joseph Ryan, Bharat Ratra
We compare the constraints from two (2019 and 2021) compilations of HII starburst galaxy (HIIG) data and test the model-independence of quasar angular size (QSO) data using six spa…
Cosmological Constraints on the Coupling Model from Observational Hubble Parameter and Baryon Acoustic Oscillation Measurements
Shulei Cao, Tong-Jie Zhang, Xinya Wang +1
In the paper, we consider two models in which dark energy is coupled with either dust matter or dark matter, and discuss the conditions that allow more time for structure formation…
Using Pantheon and DES supernova, baryon acoustic oscillation, and Hubble parameter data to constrain the Hubble constant, dark energy dynamics, and spatial curvature
Shulei Cao, Joseph Ryan, Bharat Ratra
We use Pantheon Type Ia supernova (SN Ia) apparent magnitude, DES-3yr binned SN Ia apparent magnitude, Hubble parameter, and baryon acoustic oscillation measurements to constrain s…
Cosmological constraints from higher-redshift gamma-ray burst, HII starburst galaxy, and quasar (and other) data
Shulei Cao, Joseph Ryan, Narayan Khadka +1
We use higher-redshift gamma-ray burst (GRB), HII starburst galaxy (HIIG), and quasar angular size (QSO-AS) measurements to constrain six spatially flat and non-flat cosmological m…
Cosmological constraints from HII starburst galaxy apparent magnitude and other cosmological measurements
Shulei Cao, Joseph Ryan, Bharat Ratra
We use HII starburst galaxy apparent magnitude measurements to constrain cosmological parameters in six cosmological models. A joint analysis of HII galaxy, quasar angular size, ba…
Testing the Universe Jointly with the Redshift-dependent Expansion rate and Angular-diameter and Luminosity Distances
Hao-Yi Wan, Shu-Lei Cao, Fulvio Melia +1
We use three different data sets, specifically measurements from cosmic chronometers, the HII-galaxy Hubble diagram, and reconstructed quasar-core angular-size measurements,…
Cosmological model-independent test of CDM with two-point diagnostic by the observational Hubble parameter data
Shu-Lei Cao, Xiao-Wei Duan, Xiao-Lei Meng +1
Aiming at exploring the nature of dark energy (DE), we use forty-three observational Hubble parameter data (OHD) in the redshift range to make a cosmological…
Statefinder diagnostic and constraints on the Palatini f(R) gravity theories
Shu-Lei Cao, Song Li, Hao-Ran Yu +1
We focus on a series of gravity theories in Palatini formalism to investigate the probabilities of producing the late-time acceleration for the flat Friedmann-Robertson-Walk…
Testing backreaction effects with observational Hubble parameter data
Shu-Lei Cao, Huan-Yu Teng, Hao-Ran Yu +2
In order to explore the generic properties of a backreaction model for explaining the accelerated expansion of the Universe, we exploit two metrics to describe the late time Univer…