Results 51 to 60 of about 1,909 (156)

The Hubble Constant from SN Refsdal [PDF]

The Astrophysical Journal Letters, 2018
Abstract Hubble Space Telescope observations from 2015 December 11 detected the expected fifth counter-image of supernova (SN) Refsdal at z = 1.49. In this Letter, we compare the time-delay predictions from numerous models with the measured value derived by Kelly et al. from very early data in the light curve of the SN
J. Vega-Ferrero, J. M. Diego, V. Miranda, G. M. Bernstein   +3 more
openaire   +3 more sources

Joint Inference of Population, Cosmology, and Neutron Star Equation of State from Gravitational Waves of Dark Binary Neutron Stars

The Astrophysical Journal Supplement Series
Gravitational waves (GWs) from binary neutron stars (BNSs) are expected to be accompanied by electromagnetic (EM) emissions, which help identify the host galaxy.
Tathagata Ghosh, Bhaskar Biswas, Sukanta Bose, Shasvath J. Kapadia   +3 more
doaj   +1 more source

The Hubble Tension Resolved by the DESI Baryon Acoustic Oscillations Measurements

The Astrophysical Journal Letters
The Lambda cold dark matter (ΛCDM) cosmological model provides a good description of a wide range of astrophysical and cosmological observations. However, severe challenges to the phenomenological ΛCDM model have emerged recently, including the Hubble ...
X. D. Jia, J. P. Hu, D. H. Gao, S. X. Yi, F. Y. Wang   +4 more
doaj   +1 more source

Uncorrelated Estimations of H0 Redshift Evolution from DESI Baryon Acoustic Oscillation Observations

The Astrophysical Journal Letters
The Dark Energy Spectroscopic Instrument (DESI) collaboration recently released the first-year data of baryon acoustic oscillations (BAOs). Based on the five different tracers, the cosmological constraint shows a hint of deviation from the standard ΛCDM ...
X. D. Jia, J. P. Hu, S. X. Yi, F. Y. Wang   +3 more
doaj   +1 more source

A Model-independent Method to Determine H 0 Using Time-delay Lensing, Quasars, and Type Ia Supernovae

The Astrophysical Journal
Absolute distances from strong lensing can anchor Type Ia Supernovae (SNe Ia) at cosmological distances giving a model-independent inference of the Hubble constant ( H _0 ).
Xiaolei Li, Ryan E. Keeley, Arman Shafieloo, Kai Liao   +3 more
doaj   +1 more source

Hints of New Physics for the Hubble Tension: Violation of Cosmological Principle

The Astrophysical Journal Letters
Discrepancy between the measurements of Hubble constant H _0 from the cosmic microwave background and the local distance ladder is the most serious challenge to the standard ΛCDM model.
J. P. Hu, X. D. Jia, J. Hu, F. Y. Wang
doaj   +1 more source

The Hubble constant troubled by dark matter in non-standard cosmologies. [PDF]

Sci Rep, 2022
Alcaniz JS, Neto JP, Queiroz FS, da Silva DR, Silva R, Silva R.   +5 more
europepmc   +1 more source

Determining Cosmological-model-independent H 0 with Gravitationally Lensed Supernova Refsdal

The Astrophysical Journal
The reappearance of supernova Refsdal with detailed modeling of the lens cluster allows us to measure the time-delay distance, which serves as a powerful tool to determine the Hubble constant ( H _0 ).
Xiaolei Li, Kai Liao
doaj   +1 more source

Can Inflation Resolve the Hubble Tension?

Universe
In this work, we investigate how a change in the sound horizon due to inflation may affect the value of H0. Performing an analysis using the measurements of BAO, SN Ia, H(z), CMB, and the local H0, we show that the modification in the sound horizon ...
Ione A. Silva, Edésio M. Barboza
doaj   +1 more source

Author Correction: The Hubble constant troubled by dark matter in non-standard cosmologies. [PDF]

Sci Rep, 2023
Alcaniz JS, Neto JP, Queiroz FS, da Silva DR, Silva R.   +4 more
europepmc   +1 more source