Results 111 to 120 of about 16,133 (302)
COSMOLOGICAL PERTURBATIONS AND THE RUNNING COSMOLOGICAL CONSTANT MODEL [PDF]
International Journal of Modern Physics D, 2012 We study the matter density fluctuations in the running cosmological constant (RCC) model using linear perturbations in the longitudinal gauge. Using this observable, we calculate the growth rate of structures and the matter power spectrum, and compare these results to SDSS data and the available data for linear growth rate.
openaire +2 more sources
Clustering and redshift-space distortions in QSO and galaxy surveys [PDF]
, 2006 In this thesis, we exploit the potential of existing QSO and galaxy surveys for investigating the nature of the large scale structure in the Universe. A detailed analysis of clustering and redshift- space distortions allows us to constrain cosmological ...
Cruz da Angela, José Antonio +1 more
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The cosmological constant revisited [PDF]
, 1999 I briefly review the observational evidence for a small cosmological constant at the present epoch. This evidence mainly comes from high redshift observations of Type 1a supernovae, which, when combined with CMB observations strongly support a flat ...
Sahni, Varun
core +1 more source
A Ch'ixi Philosophy of History: Rivera Cusicanqui After Benjamin
Constellations, EarlyView.
Daniel Luna Jacobs
wiley +1 more source
Theological Doctrines as Scientific Theories? Thinking along with and beyond McGrath
International Journal of Systematic Theology, EarlyView.Abstract McGrath's recent analysis of the parallels between scientific theory formation and the development of theological doctrine in The Nature of Christian Doctrine (OUP, 2024) is insightful and largely compelling, but also raises some questions and areas for further exploration. First, there is a remarkable back‐and‐forth between uses of ‘doctrine’
Gijsbert van den Brink
wiley +1 more source
Forecasts on the dark energy anisotropic stress for the esa euclid survey [PDF]
The cosmological constant Λ seems to be a not satisfactory explanation of the late-time accelerated expansion of the Universe, for which a number of experimental evidences exist; therefore, it has become necessary in the last years to consider ...
Fogli, Simone
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Meteoritics &Planetary Science, EarlyView.Abstract This study provides the first petrographic, crystallographic, and chemical comparison between El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155), two particular IAB‐ungrouped iron meteorites. Both contain exceptionally large graphite nodules and “flowers”, providing unique insights into carbon behavior in metallic melts and cooling ...
L. Perez +8 more
wiley +1 more source
Cosmological constant from a deformation of the Wheeler–DeWitt equation
Nuclear Physics B, 2016 In this paper, we consider the Wheeler–DeWitt equation modified by a deformation of the second quantized canonical commutation relations. Such modified commutation relations are induced by a Generalized Uncertainty Principle.
Remo Garattini, Mir Faizal
doaj +1 more source
Perihelion Precessions of Inner Planets in Einstein's Theory and Predicted Values for the Cosmological Constant. [PDF]
ScientificWorldJournal, 2022 Salas S AH +2 more
europepmc +1 more source
Aspects of plane waves and Taub-NUT as exact string theory solutions [PDF]
, 2004 This thesis is a study of some aspects of string theory solutions that are exact in the inverse string tension ɑ', and thus are valid beyond the low-energy limit.
Svendsen, Harald Georg
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