Articles with "hubble constant" as a keyword



Determination of Hubble constant from Megamaser Cosmology Project using profile likelihood

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Published in 2025 at "Astrophysics and Space Science"

DOI: 10.1007/s10509-025-04454-3

Abstract: The Megamaser Cosmology Project inferred a value for the Hubble constant given by H0=73.9±3.0\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$H_{0}=73.9 \pm 3.0 $\end{document} km/sec/Mpc. This value was obtained using Bayesian inference by… read more here.

Keywords: cosmology; profile likelihood; usepackage; megamaser cosmology ... See more keywords
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The Hubble Constant of Large-Scale Substances and Cosmic Bodies

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Published in 2018 at "Russian Physics Journal"

DOI: 10.1007/s11182-018-1447-x

Abstract: A result of calculation of the topological properties of the Universe and its large-scale substances is presented. An equation for calculating values of the Hubble constant of the substances of the Universe, and of the… read more here.

Keywords: large scale; scale substances; hubble constant; substances cosmic ... See more keywords

A gravitational-wave standard siren measurement of the Hubble constant

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Published in 2017 at "Nature"

DOI: 10.1038/nature24471

Abstract: On 17 August 2017, the Advanced LIGO and Virgo detectors observed the gravitational-wave event GW170817—a strong signal from the merger of a binary neutron-star system. Less than two seconds after the merger, a γ-ray burst… read more here.

Keywords: gravitational wave; distance; hubble constant; measurement hubble ... See more keywords

A two per cent Hubble constant measurement from standard sirens within five years

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Published in 2018 at "Nature"

DOI: 10.1038/s41586-018-0606-0

Abstract: Gravitational-wave detections provide a novel way to determine the Hubble constant1–3, which is the current rate of expansion of the Universe. This ‘standard siren’ method, with the absolute distance calibration provided by the general theory… read more here.

Keywords: within five; per cent; five years; hubble constant ... See more keywords

Fakeons and microcausality: light cones, gravitational waves and the Hubble constant

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Published in 2020 at "Classical and Quantum Gravity"

DOI: 10.1088/1361-6382/ab78d2

Abstract: The concept of fake particle, or "fakeon", allows us to make sense of quantum gravity as an ultraviolet complete theory, by renouncing causality at very small distances. We investigate whether the violation of microcausality can… read more here.

Keywords: gravitational waves; microcausality light; hubble constant; light cones ... See more keywords

Does the Hubble constant tension call for new physics

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Published in 2018 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2018/09/025

Abstract: The Λ Cold Dark Matter model (ΛCDM) represents the current standard model in cosmology. Within this, there is a tension between the value of the Hubble constant, H0, inferred from local distance indicators and the… read more here.

Keywords: energy; cosmology; physics; hubble constant ... See more keywords
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The mass of a dark matter WIMP derived from the Hubble constant conflict

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Published in 2020 at "Research in Astronomy and Astrophysics"

DOI: 10.1088/1674-4527/20/9/136

Abstract: There continues to be good reason to believe that dark matter particles, which only “feel” the gravitational force influence the local and distant universe (Karachentsev et al 2018, Nesti & Salucci 2012, Rubin 2004), despite… read more here.

Keywords: hubble constant; mass dark; dark matter; wimp ... See more keywords

New constraint of the Hubble constant by proper motions of radio components observed in AGN twin-jets

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Published in 2021 at "Research in Astronomy and Astrophysics"

DOI: 10.1088/1674-4527/21/10/261

Abstract: As the advent of precision cosmology, the Hubble constant (H 0) inferred from the Lambda Cold Dark Matter fit to the Cosmic Microwave Background data is increasingly in tension with the measurements from the local… read more here.

Keywords: motions radio; components observed; hubble constant; radio components ... See more keywords

The Dark Energy Survey Supernova Program: An updated measurement of the Hubble constant using the Inverse Distance Ladder

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Published in 2024 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf122

Abstract: We measure the current expansion rate of the Universe, Hubble’s constant H0, by calibrating the absolute magnitudes of supernovae to distances measured by Baryon Acoustic Oscillations. This ‘inverse distance ladder’ technique provides an alternative to… read more here.

Keywords: distance; inverse distance; history; energy ... See more keywords

A Hubble constant estimation with dark standard sirens and galaxy cluster catalogues

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Published in 2025 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf1432

Abstract: In this paper, we explore the possibility of using galaxy cluster catalogues to provide redshift support for a gravitational-wave dark standard siren measurement of the Hubble constant H0. We adapt the cosmology inference pipeline gwcosmo… read more here.

Keywords: galaxy cluster; cluster catalogues; cluster; dark standard ... See more keywords

Reassessing the Cepheid-based distance ladder: implications for the Hubble constant

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Published in 2024 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf308

Abstract: The Hubble constant (H0) is a key parameter in cosmology, yet its precise value remains contentious due to discrepancies between early- and late-universe measurement methods, a problem known as the “Hubble tension.” In this study,… read more here.

Keywords: based distance; distance ladder; cepheid; cepheid based ... See more keywords