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B

Bharat Ratra

Kansas State University

53H-index
175Paper Count
1.8WCitation Count
Published Papers 84
Publication Date
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Testing the consistency of new Amati-correlated gamma-ray burst dataset cosmological constraints with those from better-established cosmological data
errJournal of Cosmology and Astroparticle Physics
IF5.9
err2025-09-29
err0
errOAAI
errShulei Cao; Bharat Ratra
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Testing the standardizability of, and deriving cosmological constraints from, a new Amati-correlated gamma-ray burst data compilation
errJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
IF5.9
err2024-10-25
err0
errOAAI
errCao, Shulei; Ratra, Bharat
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errSave
Effects of Type Ia Supernovae Absolute Magnitude Priors on the Hubble Constant Value
errASTROPHYSICAL JOURNAL LETTERS
IF11.7
err2024-03-12
err7
errOAAI
errChen, Yun; Kumar, Suresh; Ratra, Bharat; Xu, Tengpeng
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Median Statistics Estimate of the Distance to M87
errPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
IF7.7
err2024-03-05
err1
errOAAI
errRackers, Nicholas; Splawska, Sofia; Ratra, Bharat
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Effects of heterogeneous data sets and time-lag measurement techniques on cosmological parameter constraints from Mg ii and C iv reverberation-mapped quasar data
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2024-02-10
err5
errOAAI
errCao, Shulei; Zajacek, Michal; Czerny, Bozena; Panda, Swayamtrupta; Ratra, Bharat
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Effect of Extinction on Quasar Luminosity Distances Determined from UV and X-Ray Flux Measurements
errASTROPHYSICAL JOURNAL
IF5.4
err2024-01-31
err8
errOAAI
errZajacek, Michal; Czerny, Bozena; Khadka, Narayan; Martinez-Aldama, Mary Loli; Prince, Raj; Panda, Swayamtrupta; Ratra, Bharat
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Quasar UV/X-ray relation luminosity distances are shorter than reverberation-measured radius-luminosity relation luminosity distances
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2023-04-08
err17
errOAAI
errKhadka, Narayan; Zajacek, Michal; Prince, Raj; Panda, Swayamtrupta; Czerny, Bozena; Martinez-Aldama, Mary Loli; Jaiswal, Vikram Kumar; Ratra, Bharat
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Standardizing reverberation-measured C iv time-lag quasars, and using them with standardized Mg ii quasars to constrain cosmological parameters
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2022-08-22
err22
errOAAI
errCao, Shulei; Zajacek, Michal; Panda, Swayamtrupta; Loli Martinez-Aldama, Mary; Czerny, Bozena; Ratra, Bharat
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Gamma-ray burst data strongly favour the three-parameter fundamental plane (Dainotti) correlation over the two-parameter one
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2022-08-01
err22
errOAAI
errCao, Shulei; Dainotti, Maria; Ratra, Bharat
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errSave
Consistency study of high- and low-accreting Mg II quasars: no significant effect of the Fe II to Mg II flux ratio on the radius-luminosity relation dispersion
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2022-07-12
err20
errOAAI
errKhadka, Narayan; Zajacek, Michal; Panda, Swayamtrupta; Martinez-Aldama, Mary Loli; Ratra, Bharat
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Using lower redshift, non-CMB, data to constrain the Hubble constant and other cosmological parameters
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2022-04-29
err58
errOAAI
errCao, Shulei; Ratra, Bharat
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errSave
Do reverberation-measured Hβ quasars provide a useful test of cosmology?
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2022-04-07
err25
errOAAI
errKhadka, Narayan; Martinez-Aldama, Mary Loli; Zajacek, Michal; Czerny, Bozena; Ratra, Bharat
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Standardizing Platinum Dainotti-correlated gamma-ray bursts, and using them with standardized Amati-correlated gamma-ray bursts to constrain cosmological model parameters
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2022-02-24
err47
errOAAI
errCao, Shulei; Dainotti, Maria; Ratra, Bharat
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errSave
Do quasar X-ray and UV flux measurements provide a useful test of cosmological models?
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2021-12-21
err47
errOAAI
errKhadka, Narayan; Ratra, Bharat
errShare
errSave
Standardizing Dainotti-correlated gamma-ray bursts, and using them with standardized Amati-correlated gamma-ray bursts to constrain cosmological model parameters
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2021-12-08
err47
errOAAI
errCao, Shulei; Khadka, Narayan; Ratra, Bharat
errShare
errSave
Cosmological constraints from H II starburst galaxy, quasar angular size, and other measurements
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2021-11-15
err27
errOAAI
errCao, Shulei; Ryan, Joseph; Ratra, Bharat
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Standardizing reverberation-measured Mg II time-lag quasars, by using the radius-luminosity relation, and constraining cosmological model parameters
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2021-10-02
err32
errOAAI
errKhadka, Narayan; Yu, Zhefu; Zajacek, Michal; Martinez-Aldama, Mary Loli; Czerny, Bozena; Ratra, Bharat
errShare
errSave
Do gamma-ray burst measurements provide a useful test of cosmological models?
errJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
IF5.9
err2021-09-29
err58
errOAAI
errKhadka, Narayan; Luongo, Orlando; Muccino, Marco; Ratra, Bharat
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errSave
Using Pantheon and DES supernova, baryon acoustic oscillation, and Hubble parameter data to constrain the Hubble constant, dark energy dynamics, and spatial curvature
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2021-04-05
err76
errOAAI
errCao, Shulei; Ryan, Joseph; Ratra, Bharat
errShare
errSave
Determining the range of validity of quasar X-ray and UV flux measurements for constraining cosmological model parameters
errMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
IF4.8
err2021-02-20
err63
errOAAI
errKhadka, Narayan; Ratra, Bharat
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errSave

Research Directions

No research directions
Co-authors
Cooperation Journals
C
Carlos S. Frenk
H-index: 147 · Papers: 903
P
P. A. R. Ade
H-index: 140 · Papers: 1.4K
D
David H. Weinberg
H-index: 135 · Papers: 704
K
K. M. Górski
H-index: 128 · Papers: 476
G
G. Rocha
H-index: 116 · Papers: 352
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