5 papers
Standardizing reverberation-mapped H active galactic nuclei using time-averaged radiusluminosity relations with 5100\,Ã \,, broad H, and narrow \OIII\ luminosities
Shulei Cao, Amit Kumar Mandal, Michal ZajaÄek +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…
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 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 ZajaÄek +1
We present a high-quality, homogeneous sample of 157 H reverberation-mapped active galactic nuclei (RM AGNs) spanning redshifts , which is approxima…
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 ZajaÄek +2
We test the standardizability of a homogeneous sample of 41 lower-redshift () active galactic nuclei (AGNs) reverberation-mapped (RM) using the broad H$α…
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…