Dark Matter Cosmology and Astrophysics

Netchitailo, Vladimir S.

doi:10.4236/jhepgc.2019.54056

Cited by 23 publications

(63 citation statements)

References 106 publications

(102 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By definition, "Black-body radiation is the thermal electromagnetic radiation within or surrounding a body in thermodynamic equilibrium with its environment". In frames of WUM, the black-body spectrum of CMB is due to thermodynamic equilibrium of photons with the Intergalactic plasma [1], the existence of which is experimentally proved [8].…”

Section: Origin Of the Cosmic Background Radiationmentioning

confidence: 99%

“…Dark Matter Particles (DMPs) carry new Matter into the Nucleus. By analogy with a three-dimensional ball, which has a two-dimensional sphere surface (that has surface energy), we can imagine that our three-dimensional World (Hypersphere) has a "Surface energy" of the four-dimensional Nucleus [1].…”

Section: Expansion and Creation Of Mattermentioning

confidence: 99%

“…Consequently, the matter-antimatter asymmetry problem discussed in literature does not arise (since antimatter does not get created by DM annihilation). As a conclusion, Gravity, Space and Time are all emergent phenomena [1]. In this regard, it is worth to recall the Albert Einstein quote: "When forced to summarize the theory of relativity in one sentence: time and space and gravitation have no separate existence from matter".…”

Section: It Is Important To Emphasize That • Creation Of Matter Is a mentioning

confidence: 99%

“…Note that the precision of the most parameters value has increased by three orders of magnitude. We are not aware of any other model that allows calculation of CMB temperature with such accuracy [1].…”

Section: Inter-connectivity Of Primary Cosmological Parametersmentioning

confidence: 99%

“…WUM introduces classical notions once the very first ensemble of particles has been created at the cosmological time . It is worth to note that the constant α was later named "Sommerfeld's constant," and subsequently "Fine-structure constant" [1]. The ΛCDM model is based on six parameters: baryon density B Ω , dark mat-ter density DM Ω , dark energy density Λ Ω , scalar spectral index, curvature fluctuation amplitude, and reionization optical depth.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

World-Universe Model—Alternative to Big Bang Model

Netchitailo¹

2020

JHEPGC

Self Cite

View full text Add to dashboard Cite

This manuscript provides a comparison of the Hypersphere World-Universe Model (WUM) with the prevailing Big Bang Model (BBM) of the Standard Cosmology. The performed analysis of BBM shows that the Four Pillars of the Standard Cosmology are model-dependent and not strong enough to support the model. The angular momentum problem is one of the most critical problems in BBM. Standard Cosmology cannot explain how Galaxies and Extra Solar systems obtained their substantial orbital and rotational angular momenta, and why the orbital momentum of Jupiter is considerably larger than the rotational momentum of the Sun. WUM is the only cosmological model in existence that is consistent with the Law of Conservation of Angular Momentum. To be consistent with this Fundamental Law, WUM discusses in detail the Beginning of the World. The Model introduces Dark Epoch (spanning from the Beginning of the World for 0.4 billion years) when only Dark Matter Particles (DMPs) existed, and Luminous Epoch (ever since for 13.8 billion years). Big Bang discussed in Standard Cosmology is, in our view, transition from Dark Epoch to Luminous Epoch due to Rotational Fission of Overspinning Dark Matter (DM) Supercluster's Cores. WUM envisions Matter carried from the Universe into the World from the fourth spatial dimension by DMPs. Ordinary Matter is a byproduct of DM annihilation. WUM solves a number of physical problems in contemporary Cosmology and Astrophysics through DMPs and their interactions: Angular Momentum problem in birth and subsequent evolution of Galaxies and Extrasolar systems-how do they obtain it; Fermi Bubbles-two large structures in gamma-rays and X-rays above and below Galactic center; Diversity of Gravitationally-Rounded Objects in Solar system; some problems in Solar and Geophysics [1]. WUM reveals Inter-Connectivity of Primary Cosmological Parameters and calculates their values, which are in good agreement with the latest results of their measurements.

show abstract

Section: Origin Of the Cosmic Background Radiationmentioning

confidence: 99%

Section: Expansion and Creation Of Mattermentioning

confidence: 99%

Section: It Is Important To Emphasize That • Creation Of Matter Is a mentioning

confidence: 99%

Section: Inter-connectivity Of Primary Cosmological Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

World-Universe Model—Alternative to Big Bang Model

Netchitailo¹

2020

JHEPGC

Self Cite

View full text Add to dashboard Cite

show abstract

Daily and annual modulation rate of low mass dark matter in silicon detectors

Dinmohammadi,

Heikinheimo,

Mirabolfathi

et al. 2024

J. Phys. G: Nucl. Part. Phys.

View full text Add to dashboard Cite

Low-threshold solid-state detectors with single electron excitation sensitivity can probe nuclear recoil energies in the sub-100 eV range, coinciding with the typical threshold displacement energies in the detector material. We investigate the daily and annual modulation of the observable event rate for dark matter mass ranging from 0.2 to 5 GeV/c^2 in a silicon detector, considering the energy threshold and the direction of the nuclear recoil. The data for the energy threshold is obtained from a molecular dynamics simulation. It is shown that the directional dependence of the threshold energy and the motion of the laboratory result in the modulation of the interaction event rate. We demonstrate silicon’s average annual interaction rate is more considerable than germanium for low-mass dark matter. However, their event rates take a similar trend in large dark matter masses. Thus, silicon can be a reliable target to discriminate low-mass dark matter from backgrounds. We also find 8-hour and 12-hour periodicities in the time series of event rates for silicon detectors due to the 45-degree symmetry in the silicon crystal structure.

show abstract

Dark Matter in the Standard Model Extension in Non-Commutative Geometry (NCG)

Amina

Mounir

2021

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

It is for the most part expected that dark matter is important to clarify the rotation of the galaxy, It has effectively been seen that the non-commutative geometry background can achieve this objective similarly. The objective of this study is to investigate a relationship between non-commutative geometry and certain aspect of dark matter. We are relying on a basic mathematical expression argument that indicates that the appearance of dark matter in galaxies and galaxy clusters with regard to flat rotation curves is similarly a result of non commutative geometry.

show abstract

Dark Matter Cosmology and Astrophysics

Cited by 23 publications

References 106 publications

World-Universe Model—Alternative to Big Bang Model

World-Universe Model—Alternative to Big Bang Model

Daily and annual modulation rate of low mass dark matter in silicon detectors

Dark Matter in the Standard Model Extension in Non-Commutative Geometry (NCG)

Contact Info

Product

Resources

About