101 citations · 773 across the 20 of their papers we have counts for
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Determining the range of validity of quasar X-ray and UV flux measurements for constraining cosmological model parameters
Narayan Khadka, Bharat Ratra
We use six different cosmological models to study the recently-released compilation of X-ray and UV flux measurements of 2038 quasars (QSOs) which span the redshift range $0.009 \l…
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…
Constraints on cosmological parameters from gamma-ray burst peak photon energy and bolometric fluence measurements and other data
Narayan Khadka, Bharat Ratra
We use measurements of the peak photon energy and bolometric fluence of 119 gamma-ray bursts (GRBs) extending over the redshift range of to simultaneously…
Using quasar X-ray and UV flux measurements to constrain cosmological model parameters
Narayan Khadka, Bharat Ratra
Risaliti and Lusso have compiled X-ray and UV flux measurements of 1598 quasars (QSOs) in the redshift range , part of which, , is large…