Hubble Tension versus the Cosmic Evolution of Hubble Parameter in the Unicentric Model of the Observable Universe

Hujeirat, A.

doi:10.4236/jmp.2023.143013

Cited by 4 publications

(3 citation statements)

References 19 publications

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“…This would suggest that these galaxies most likely have settled into their final configurations within the first 500 -700 years after the Big Bang, which is too short a time scale. Moreover, the cosmic evolution of the recently detected quasar, UHZ1, which hosts roughly 7 4 10 M ×  massive BH, seems to have formed within the first 370 Myr after the big bang [10], which again hints to unreasonably rapid growth of the BH in that epoch [11].…”

Section: Z ≥mentioning

confidence: 97%

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Why the Central Monster in M87 Should Be a Massive DEO Rather than a SMBH?

Hujeirat,

Wicker

2024

JMP

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In this paper, we show that massive envelopes made of highly compressed normal matter surrounding dark objects (DEOs) can curve the surrounding spacetime and make the systems observationally indistinguishable from their massive black hole counterparts. DEOs are new astrophysical objects that are made up of entropy-free incompressible supranuclear dense superfluid (Su-Su-matter), embedded in flat spacetimes and invisible to outside observers, practically trapped in false vacua. Based on highly accurate numerical modelling of the internal structures of pulsars and massive neutron stars, and in combination with using a large variety of EOSs, we show that the mass range of DEOs is practically unbounded from above: it spans those of massive neutron stars, stellar and even supermassive black holes: thanks to the universal maximum density of normal matter, 0 3 cr ρ ρ ≈ × , beyond which normal matter converts into SuSu-matter. We apply the scenario to the Crab and Vela pulsars, the massive magnetar PSR J0740+6620, the presumably massive NS formed in GW170817, and the SMBHs in Sgr A* and M87*. Our numerical results also reveal that DEO-Envelope systems not only mimic massive BHs nicely but also indicate that massive DEOs can hide vast amounts of matter capable of turning our universe into a SuSu-matter-dominated one, essentially trapped in false vacua.

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Section: Z ≥mentioning

confidence: 97%

“…In previous articles [4] [5] [12], it was argued that these discrepancies arise, because we consider the existence of black holes in our universe a settled problem.…”

Section: Z ≥mentioning

confidence: 99%

Why the Central Monster in M87 Should Be a Massive DEO Rather than a SMBH?

Hujeirat,

Wicker

2024

JMP

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“…The energy formula of physical particles [16] [17], including Einstein's massenergy equation: The kinetic energy formula of the equivalent moving mass:…”

Section: Debroy Wavelength Formulamentioning

confidence: 99%

New Planck’s Law

Liú¹,

Bill²

2023

JAMP

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In quantum mechanics, there are two very famous formulas. One is the energy formula of the bose particle, called Planck's law. The other is the wavelength formula, which is called the de Broy wavelength. According to Einstein's mass-energy equation, we have studied Planck's law and De Bloy's wavelength, and generalized it to the De Bloy's wavelength formula from low speed to light speed. Then, on this basis, the smallest particle is defined as mass quantum. The new wavelength formula is obtained from the mass quantum and converted into the frequency formula. The generalized Planck's law is obtained.

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Why the Energy Density of the Universe Is Lower and Upper-Bounded? Relaxing the Need for the Cosmological Constant

Hujeirat¹

2023

JMP

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Recently, it was argued that the energy density of the supranuclear dense matter inside the cores of massive neutron stars must have reached the uni max  , beyond which supranuclear dense matter becomes incompressible entropy-free gluon-quark superfluid. As this matter is also confined and embedded in flat spacetime, it is Lorentz invariant and could be treated as vacuum. The lower bound of matter in the universe may be derived using the following observational constraints: 1) The average energy density of the observable universe is ( ) 9 10 OU − =   erg/cc, 2) The observable universe is remarkably flat, and 3) the Hubble constant is a slowly decreasing function of cosmic time. Based thereon, I argue that the energy density in nature should be bounded from below by the average density of our vast and flat parent universe, ρ ∞ , which is, in turn, comparable to the vacuum energy density vac

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Hubble Tension versus the Cosmic Evolution of Hubble Parameter in the Unicentric Model of the Observable Universe

Cited by 4 publications

References 19 publications

Why the Central Monster in M87 Should Be a Massive DEO Rather than a SMBH?

Why the Central Monster in M87 Should Be a Massive DEO Rather than a SMBH?

New Planck’s Law

Why the Energy Density of the Universe Is Lower and Upper-Bounded? Relaxing the Need for the Cosmological Constant

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