Tests and Problems of the Standard Model in Cosmology

López-Corredoira, Martín

doi:10.1007/s10701-017-0073-8

Cited by 59 publications

(76 citation statements)

References 395 publications

(452 reference statements)

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“…This finding is considered by many cosmologist, including López-Corredoira [4] and Orlov and Raikov [5], as inconsistent with other findings, and by Crawford [13], as flawed. Hawkins [14] did not find any time dilation in 878 quasars.…”

Section: Analysis Using Observational μ Z Databasementioning

confidence: 86%

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Static and Dynamic Components of the Redshift

Gupta¹

2018

IJAA

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We analyse the possibility that the observed cosmological redshift may be cumulatively due to the expansion of the universe and the tired light phenomenon. Since the source of both the redshifts is the same, they both independently relate to the same proper distance of the light source. Using this approach we have developed a hybrid model combining the Einstein de Sitter model and the tired light model that yields a slightly better fit to Supernovae Ia redshift data using one parameter than the standard ΛCDM model with two parameters. We have shown that the ratio of tired light component to the Einstein de Sitter component of redshift has evolved from 2.5 in the past, corresponding to redshift 1000, to its present value of 1.5. The hybrid model H . Consequently, the critical density is only 16% of its currently accepted value; a lot less dark matter is needed to make up the critical density. In addition, the best data fit yields the cosmological constant density parameter 0 Λ Ω =. The tired light effect may thus be considered equivalent to the cosmological constant in the hybrid model.

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Section: Analysis Using Observational μ Z Databasementioning

confidence: 86%

“…The status of the expanding universe and steady state theories has been recently reviewed by López-Corredoira [4] and Orlov and Raikov [5]. They concluded that based on the currently available observational data it is not possible to unambiguously identify the preferred approach to cosmology.…”

Section: Introductionmentioning

confidence: 99%

Static and Dynamic Components of the Redshift

Gupta¹

2018

IJAA

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“…Actual Dark Matter particle searches at the "Conseil Européen pour la Recherche Nucléaire" Large Hadron Collider (CERN LHC) were reviewed by Kahlhoefer [7]. The Standard Cosmological Model which predicts the relative percentage of Dark Matter in the universe was recently critically reviewed in [8]. Reviews of Dark Matter can be found in [9] and [10].…”

Section: Introductionmentioning

confidence: 99%

“…The geometry for the CNO's center to distances from the center of the galaxies was used for computing the density differences for: (a) the canted Milky Way's center to 8 kilo parsecs out from the center using the law of cosines; (b) the simpler geometry for M31 from the center to 15 kilo parsecs out with no cant angle. The virial velocity contribution from the CNO was determined using Equation (7), where the mass at the location from the center (R 1 ) and the mass at the center (R C ) were computed by integrating our degenerate neutrino density solutions for various potential degenerate neutrino masses with CNO central Fermi momentum boundary conditions from the CNO center in Equation (8) out to these specific (R 1 and R C ) distances 11 .…”

mentioning

confidence: 99%

“…Galactic speed constraints from the scientific literature for the Milky Way at 8 and 20 Kilo-parsec (kpc) were used to define the greyed-out area of acceptable Fermi momentum ratio solutions. The virial velocity contribution from the CNO was determined using Equation (7), where the mass at the location from the center (R1) and the mass at the center (RC) were computed by integrating our degenerate neutrino density solutions for various potential degenerate neutrino masses with CNO central Fermi momentum boundary conditions from the CNO center in Equation (8) out to these specific (R1 and RC) distances 11 . Figure 9 provides an example of plots used to identify acceptable local group galactic speed solutions (y-axis) for a CNO (in this case with a degenerate neutrino mass of 0.826907 eV/c 2 ) for various central boundary condition values for the Fermi momentum ratio x(0) =  (x-axis).…”

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confidence: 99%

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Weak Lensing Data and Condensed Neutrino Objects

Morley

Buettner

2017

Universe

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Condensed Neutrino Objects (CNO) are a candidate for the Dark Matter which everyone has been looking for. In this article, from Albert Einstein's original 1911 and 1917 papers, we begin the journey from weak lensing data to neutrino signatures. New research results include an Einasto density profile that fits to a range of candidate degenerate neutrino masses, goodness-of-fit test results for our functional CNO mass/radius relationship which fits to available weak lensing data, and new results based on revised constraints for the CNO that our Local Group of galaxies is embedded in.

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Promising stabs in the Dark: theory virtues and pursuit-worthiness in the Dark Energy problem

Wolf,

Duerr

2024

Synthese

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This paper argues that we ought to conceive of the Dark Energy problem—the question of how to account for observational data, naturally interpreted as accelerated expansion of the universe—as a crisis of underdetermined pursuit-worthiness. Not only are the various approaches to the Dark Energy problem evidentially underdetermined; at present, no compelling reasons single out any of them as more likely to be true than the other. More vexingly for working scientists, none of the approaches stands out as uncontroversially preferable over its rivals in terms of its rationally warranted promise, i.e. the reasons to further work on, explore, and develop it. We demonstrate this claim by applying a Peircean economic model of pursuit-worthiness in terms of a cognitive cost/benefit estimate—with the instantiation of theory virtues as key indicators of cognitive gains—to the four main Dark Energy proposals (the cosmological constant approach, modified gravity, quintessence, and inhomogeneous cosmologies). According to our analysis, these approaches do not admit of an unambiguous, or uncontroversial, ranking with respect to which ansatz deserves distinguished attention and research efforts. The overall methodological counsel that our analysis underwrites recommends a pragmatic double research strategy forward: to encourage and foster theory pluralism and the search for tests—with the goal of enhancing the testability of the $$\Lambda $$CDM model and “testing it to destruction".

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Tests and Problems of the Standard Model in Cosmology

Cited by 59 publications

References 395 publications

Static and Dynamic Components of the Redshift

Static and Dynamic Components of the Redshift

Weak Lensing Data and Condensed Neutrino Objects

Promising stabs in the Dark: theory virtues and pursuit-worthiness in the Dark Energy problem

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