☆ 4.7 Article

Quasar UV/X-ray relation luminosity distances are shorter than reverberation-measured radius-luminosity relation luminosity distances

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

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Summary: Based on the final measurements of clustering using galaxies, quasars, and Ly alpha forests from the SDSS lineage, this study provides comprehensive cosmological implications. The BAO data alone can rule out dark-energy-free models, and when combined with other measurements, significant improvements are made on constraining cosmological parameters within the ΛCDM model. The results indicate that various parameter extensions remain consistent with a ΛCDM model in a combined analysis, showing precision changes of less than 0.6% in key parameters.

PHYSICAL REVIEW D (2021)

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Investigating Cosmic Discordance

Eleonora Di Valentino et al.

Summary: The study shows that a combined analysis of different data sets can exclude the possibility of a flat universe and a cosmological constant. This calls for a reexamination of the Lambda cold dark matter model or exploration of alternative solutions.

ASTROPHYSICAL JOURNAL LETTERS (2021)

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Revealing the Accretion Physics of Supermassive Black Holes at Redshift z ∼ 7 with Chandra and Infrared Observations

Feige Wang et al.

Summary: In this study, X-ray properties of quasars with redshift z > 6.5 are systematically analyzed, revealing correlations between X-ray radiation and optical, infrared parameters. Additionally, the growth rate of supermassive black holes and their host galaxies in these distant quasars is found to differ from that of local galaxies.

ASTROPHYSICAL JOURNAL (2021)

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Quasar X-ray and UV flux, baryon acoustic oscillation, and Hubble parameter measurement constraints on cosmological model parameters

Narayan Khadka et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

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Extreme ultraviolet quasar colours from GALEX observations of the SDSS DR14Q catalogue

Daniel E. Vanden Berk et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

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Article Astronomy & Astrophysics

Planck 2018 results: VI. Cosmological parameters

N. Aghanim et al.

ASTRONOMY & ASTROPHYSICS (2020)

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Quasars as standard candles: III. Validation of a new sample for cosmological studies

E. Lusso et al.

ASTRONOMY & ASTROPHYSICS (2020)

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Cosmological constraints from HII starburst galaxy apparent magnitude and other cosmological measurements

Shulei Cao et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

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Article Astronomy & Astrophysics

Using quasar X-ray and UV flux measurements to constrain cosmological model parameters

Narayan Khadka et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

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Constraints on cosmological parameters from gamma-ray burst peak photon energy and bolometric fluence measurements and other data

Narayan Khadka et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

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Scatter Analysis along the Multidimensional Radius-Luminosity Relations for Reverberation-mapped Mg ii Sources

Mary Loli Martinez-Aldama et al.

ASTROPHYSICAL JOURNAL (2020)

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The Cepheid Distance to the Seyfert 1 Galaxy NGC 4151

W. Yuan et al.

ASTROPHYSICAL JOURNAL (2020)

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The Sloan Digital Sky Survey Reverberation Mapping Project: Mgii Lag Results from Four Years of Monitoring

Y. Homayouni et al.

ASTROPHYSICAL JOURNAL (2020)

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Generalized tracker quintessence models for dark energy

L. Arturo Urena-Lopez et al.

PHYSICAL REVIEW D (2020)

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Time-delay Measurement of MgiiBroad-line Response for the Highly Accreting Quasar HE 0413-4031: Implications for the Mgii-based Radius-Luminosity Relation

Michal Zajacek et al.

ASTROPHYSICAL JOURNAL (2020)

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Using SPT polarization, Planck 2015, and non-CMB data to constrain tilted spatially-flat and untilted nonflat ΛCDM, XCDM, and φCDM dark energy inflation cosmologies

Chan-Gyung Park et al.

PHYSICAL REVIEW D (2020)

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Discarding the disc in a changing-state AGN: the UV/X-ray relation in NGC 4151

Ra'ad D. Mahmoud et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

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The evidence for a spatially flat Universe

George Efstathiou et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

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MontePython 3: Boosted MCMC sampler and other features

Thejs Brinckmann et al.

PHYSICS OF THE DARK UNIVERSE (2019)

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Observational constraints on the tilted flat-XCDM and the untilted nonflat XCDM dynamical dark energy inflation parameterizations

Chan-Gyung Park et al.

ASTROPHYSICS AND SPACE SCIENCE (2019)

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Low redshift observational constraints on tachyon models of dark energy

Avinash Singh et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2019)

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Baryon acoustic oscillation, Hubble parameter, and angular size measurement constraints on the Hubble constant, dark energy dynamics, and spatial curvature

Joseph Ryan et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2019)

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Measuring the Hubble constant and spatial curvature from supernova apparent magnitude, baryon acoustic oscillation, and Hubble parameter data

Chan-Gyung Park et al.

ASTROPHYSICS AND SPACE SCIENCE (2019)

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Signs of dynamical dark energy in current observations

Joan Sola Peracaula et al.

PHYSICS OF THE DARK UNIVERSE (2019)

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Planck 2015 constraints on spatially-flat dynamical dark energy models

Junpei Ooba et al.

ASTROPHYSICS AND SPACE SCIENCE (2019)

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Cosmological constraints from the Hubble diagram of quasars at high redshifts

G. Risaliti et al.

NATURE ASTRONOMY (2019)

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Dark Energy Survey year 1 results: Constraints on extended cosmological models from galaxy clustering and weak lensing

T. M. C. Abbott et al.

PHYSICAL REVIEW D (2019)

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Using the Tilted flat-ΛCDM and the Untilted Non-flat ΛCDM Inflation Models to Measure Cosmological Parameters from a Compilation of Observational Data

Chan-Gyung Park et al.

ASTROPHYSICAL JOURNAL (2019)

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The Sloan Digital Sky Survey Reverberation Mapping Project: Sample Characterization

Yue Shen et al.

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES (2019)

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Spectral Analysis of Fermi-LAT Gamma-Ray Bursts with Known Redshift and their Potential Use as Cosmological Standard Candles

F. Fana Dirirsa et al.

ASTROPHYSICAL JOURNAL (2019)

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Time Delay Measurement of MgII Line in CTS C30.10 with SALT

Bozena Czerny et al.

ASTROPHYSICAL JOURNAL (2019)

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Can Reverberation-measured Quasars Be Used for Cosmology?

Mary Loli Martinez-Aldama et al.

ASTROPHYSICAL JOURNAL (2019)

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Constraints on dark energy dynamics and spatial curvature from Hubble parameter and baryon acoustic oscillation data

Joseph Ryan et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2018)

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Planck 2015 Constraints on the Nonflat φCDM Inflation Model

Junpei Ooba et al.

ASTROPHYSICAL JOURNAL (2018)

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Planck 2015 Constraints on the Non-flat ΛCDM Inflation Model

Junpei Ooba et al.

ASTROPHYSICAL JOURNAL (2018)

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Hubble Parameter and Baryon Acoustic Oscillation Measurement Constraints on the Hubble Constant, the Deviation from the Spatially Flat Lambda CDM Model, the Deceleration-Acceleration Transition Redshift, and Spatial Curvature

Hai Yu et al.

ASTROPHYSICAL JOURNAL (2018)

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The Complete Light-curve Sample of Spectroscopically Confirmed SNe Ia from Pan-STARRS1 and Cosmological Constraints from the Combined Pantheon Sample

D. M. Scolnic et al.

ASTROPHYSICAL JOURNAL (2018)

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Observational Constraints on the Tilted Spatially Flat and the Untilted Nonflat phi CDM Dynamical Dark Energy Inflation Models

Chan-Gyung Park et al.

ASTROPHYSICAL JOURNAL (2018)

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Planck 2015 Constraints on the Non-flat XCDM Inflation Model

Junpei Ooba et al.

ASTROPHYSICAL JOURNAL (2018)

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Constraining cosmic curvature by using age of glalxies and gravitational lenses

Akshay Rana et al.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2017)

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Ultra-compact structure in intermediate-luminosity radio quasars: building a sample of standard cosmological rulers and improving the dark energy constraints up to z similar to 3

Shuo Cao et al.

ASTRONOMY & ASTROPHYSICS (2017)

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An Evaluation of Cosmological Models from the Expansion and Growth of Structure Measurements

Zhongxu Zhai et al.

ASTROPHYSICAL JOURNAL (2017)

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Measuring dark energy with the E-iso- E-p correlation of gamma -ray bursts using model -independent methods

J. S. Wang et al.

ASTRONOMY & ASTROPHYSICS (2016)

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Measuring dark energy with the E-iso- E-p correlation of gamma -ray bursts using model -independent methods

J. S. Wang et al.

ASTRONOMY & ASTROPHYSICS (2016)

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THE TIGHT RELATION BETWEEN X-RAY AND ULTRAVIOLET LUMINOSITY OF QUASARS

E. Lusso et al.

ASTROPHYSICAL JOURNAL (2016)

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THE SLOAN DIGITAL SKY SURVEY REVERBERATION MAPPING PROJECT: FIRST BROAD-LINE Hβ AND Mg II LAGS AT z ≳ 0.3 FROM SIX-MONTH SPECTROSCOPY

Yue Shen et al.

ASTROPHYSICAL JOURNAL (2016)

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A HUBBLE DIAGRAM FOR QUASARS

G. Risaliti et al.

ASTROPHYSICAL JOURNAL (2015)

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The L-σ relation for massive bursts of star formation

R. Chavez et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2014)

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Towards equation of state of dark energy from quasar monitoring: Reverberation strategy

B. Czerny et al.

ASTRONOMY & ASTROPHYSICS (2013)

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THE LOW-LUMINOSITY END OF THE RADIUS-LUMINOSITY RELATIONSHIP FOR ACTIVE GALACTIC NUCLEI

Misty C. Bentz et al.

ASTROPHYSICAL JOURNAL (2013)

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Nonflat time-variable dark energy cosmology

Anatoly Pavlov et al.

PHYSICAL REVIEW D (2013)

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HST-COS OBSERVATIONS OF AGNs. I. ULTRAVIOLET COMPOSITE SPECTRA OF THE IONIZING CONTINUUM AND EMISSION LINES

J. Michael Shull et al.

ASTROPHYSICAL JOURNAL (2012)

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Constraints on dark energy from H II starburst galaxy apparent magnitude versus redshift data

Data Mania et al.

PHYSICS LETTERS B (2012)

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Photometric AGN reverberation mapping - an efficient tool for BLR sizes, black hole masses, and host-subtracted AGN luminosities

M. Haas et al.

ASTRONOMY & ASTROPHYSICS (2011)

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A NEW COSMOLOGICAL DISTANCE MEASURE USING ACTIVE GALACTIC NUCLEI

D. Watson et al.

ASTROPHYSICAL JOURNAL LETTERS (2011)

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Variability and the X-ray/UV ratio of active galactic nuclei

F. Vagnetti et al.

ASTRONOMY & ASTROPHYSICS (2010)

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The X-ray to optical-UV luminosity ratio of X-ray selected type 1 AGN in XMM-COSMOS

E. Lusso et al.

ASTRONOMY & ASTROPHYSICS (2010)

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THE X-RAY ENERGY DEPENDENCE OF THE RELATION BETWEEN OPTICAL AND X-RAY EMISSION IN QUASARS

M. Young et al.

ASTROPHYSICAL JOURNAL (2010)

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THE SIMULTANEOUS OPTICAL-TO-X-RAY SPECTRAL ENERGY DISTRIBUTION OF SOFT X-RAY SELECTED ACTIVE GALACTIC NUCLEI OBSERVED BY SWIFT

Dirk Grupe et al.

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES (2010)

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A FULL YEAR'S CHANDRA EXPOSURE ON SLOAN DIGITAL SKY SURVEY QUASARS FROM THE CHANDRA MULTIWAVELENGTH PROJECT

Paul J. Green et al.

ASTROPHYSICAL JOURNAL (2009)

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The X-ray properties of the most luminous quasars from the sloan digital sky survey

D. W. Just et al.

ASTROPHYSICAL JOURNAL (2007)

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The broad band spectrum and variability of NGC 4151 observed by BeppoSAX

A. De Rosa et al.

ASTRONOMY & ASTROPHYSICS (2007)

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The mass of the central black hole in the Seyfert galaxy NGC 4151

Kyle G. Metzroth et al.

ASTROPHYSICAL JOURNAL (2006)

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The X-ray-to-optical properties of optically selected active galaxies over wide luminosity and redshift ranges

A. T. Steffen et al.

ASTRONOMICAL JOURNAL (2006)

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Binned cosmic microwave background anisotropy power spectra: Peak location

S Podariu et al.

ASTROPHYSICAL JOURNAL (2001)

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Composite quasar spectra from the Sloan Digital Sky Survey

DE Vanden Berk et al.

ASTRONOMICAL JOURNAL (2001)

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