Missing completely of the CMB quadrupole in WMAP data

Liu, Hao; Li, Ti-Pei

doi:10.1007/s11434-013-5735-0

Cited by 5 publications

(4 citation statements)

References 28 publications

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“…for the discrepancy [276,279], which points towards a violation of statistical isotropy [280]. The lack of quadrupole CMB signal is, according to some authors [281,278], a serious challenge to the standard model. There is abnormally high (low) powers in the = 6, 12-17 modes [277]; the probabilities for having the anomalous amplitudes of the = 5, 6, 17 modes are about 0.1%, 1% and 1% respectively according to the Gaussian conjecture.…”

Section: Other Contaminants and Anomaliesmentioning

confidence: 99%

Tests and Problems of the Standard Model in Cosmology

López-Corredoira

2017

Preprint

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The main foundations of the standard ΛCDM model of cosmology are that: 1) The redshifts of the galaxies are due to the expansion of the Universe plus peculiar motions; 2) The cosmic microwave background radiation and its anisotropies derive from the high energy primordial Universe when matter and radiation became decoupled; 3) The abundance pattern of the light elements is explained in terms of primordial nucleosynthesis; and 4) The formation and evolution of galaxies can be explained only in terms of gravitation within a inflation+dark matter+dark energy scenario. Numerous tests have been carried out on these ideas and, although the standard model works pretty well in fitting many observations, there are also many data that present apparent caveats to be understood with it. In this paper, I offer a review of these tests and problems, as well as some examples of alternative models.Keywords Cosmology · Observational cosmology · Origin, formation, and abundances of the elements · dark matter · dark energy · superclusters and large-scale structure of the Universe

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Section: Other Contaminants and Anomaliesmentioning

confidence: 99%

Tests and Problems of the Standard Model in Cosmology

López-Corredoira

2017

Preprint

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“…Therefore, our universe could be created from a limited region of R s ≤ 10 −40 R 0 with an initial energy density ρ s at z s ≤ 10 40 by a phase transition, taking place in a static primordial vacuum consisting of two balanced scalar fields [37] . Such a scenario for the primordial universe may also explain the observed lack of CMB power on the largest scales [38,39] . In ΛCDM, the universe was created from a primordial singular point by a Big Bang.…”

Section: Composition Origin and Fate Of The Universementioning

confidence: 94%

Thermal Gravitational Radiation and Condensed Universe

Li¹,

Wu²

2016

Preprint

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The perfect Planck spectrum of the observed cosmic microwave background radiation indicates that our universe must be in thermal equilibrium. The dark sector of the universe should also be in the same equilibrium state with dark matter and dark energy coupled to each other and emits gravitational phonon blackbody radiation which is the main component of the cosmic background radiation. In the radiation-dominated era such gravitational radiation should be the majority species of the cosmic medium. Instead of the ideal fluid assumed by the standard cosmological model ΛCDM, the universe has to be taken as a thermodynamic system consisting of gravitationally connected dark energy and matter. Besides particle dynamics, statistical thermodynamics is also necessary for understanding the cosmological constitution and evolution history. As an alternative to ΛCDM we constructed a dark-energy-matter-coupled (DEMC) cosmological model. Based on the relativistic mass-energy relation, conservation law of energy, Lagrange's equation with variable potential function, mean-field theory of continuous phase transition, and the symmetry principle of the kinetic coefficients, we deduced dynamic equations of the expansion of a DEMC universe with three parameters. These equations reproduce the observed history of the rate of expansion of our universe.

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“…Therefore, our universe could be generated with an initial energy density ρ V at z ∼ 10 40 by a phase transition in a limited region of R V ∼ 10 −40 R 0 , which is placed in a static primordial vacuum consisting of two balanced scalar fields [35]. Such a scenario for the primordial universe is also help to explain the observed lack of CMB power on largest scales [36,37].…”

Section: B Origin and Fatementioning

confidence: 99%

Cosmology with Coupled Gravity and Dark Energy

2014

Preprint

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Dark energy is a fundamental constituent of our universe, its status in the cosmological field equation should be equivalent to that of matter gravity. Here we construct a dark energy and matter gravity coupling (DEMC) model of cosmology in a way that dark energy and matter are introduced into the cosmological field equation in parallel with each other from the beginning. The DEMC universe possesses a composite symmetry from global Galileo invariance and local Lorentz invariance. The observed evolution of the universe expansion rate at redshift z > 1 is in tension with the standard LCDM model, but can be well predicted by the DEMC model from measurements of only nearby epochs. The so far most precise measured expansion rate at high z is quite a bit slower than the expectations from LCDM, but remarkably consistent with that from DEMC. It is hoped that the DEMC scenario can also help to solve other existing challenges to cosmology: large scale anomalies in CMB maps and large structures up to ∼ 10 3 Mpc of a quasar group. The DEMC universe is a well defined mechanical system. From measurements we can quantitatively evaluate its total rest energy, present absolute radius and expanding speed.

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Missing completely of the CMB quadrupole in WMAP data

Cited by 5 publications

References 28 publications

Tests and Problems of the Standard Model in Cosmology

Tests and Problems of the Standard Model in Cosmology

Thermal Gravitational Radiation and Condensed Universe

Cosmology with Coupled Gravity and Dark Energy

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