The Hubble Constant of Large-Scale Substances and Cosmic Bodies
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
The mass of a dark matter WIMP derived from the Hubble constant conflict
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sample variance in the local measurements of the Hubble constant
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx1967
Abstract: The current $>3\sigma$ tension between the Hubble constant $H_0$ measured from local distance indicators and from cosmic microwave background is one of the most highly debated issues in cosmology, as it possibly indicates new physics… read more here.
Keywords: sample variance; variance local; local measurements; hubble constant ... See more keywords
An independent determination of the local Hubble constant
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx2710
Abstract: The relationship between the integrated H$\beta$ line luminosity and the velocity dispersion of the ionized gas of HII galaxies and giant HII regions represents an exciting standard candle that presently can be used up to… read more here.
Keywords: independent determination; giant hii; hii regions; hubble constant ... See more keywords
Can redshift errors bias measurements of the Hubble Constant?
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz2652
Abstract: Redshifts have been so easy to measure for so long that we tend to neglect the fact that they too have uncertainties and are susceptible to systematic error. As we strive to measure cosmological parameters… read more here.
Keywords: bias measurements; errors bias; redshift errors; measurements hubble ... See more keywords
A possible solution to the Hubble constant discrepancy: Cosmology where the local volume expansion is driven by the domain average density
Sign Up to like & getrecommendations! Published in 2019 at "Progress of Theoretical and Experimental Physics"
DOI: 10.1093/ptep/ptz066
Abstract: The Hubble constant problem is the discrepancy between different measurements of the Hubble constant on different scales. We show that this problem can be resolved within the general relativistic framework of the perturbation theory in… read more here.
Keywords: discrepancy; perturbation theory; hubble constant; possible solution ... See more keywords