Results 141 to 150 of about 416,864 (290)
Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.Abstract Jupiter's auroral regions have previously been defined by broad‐scale auroral structures, but these are typically obscured by the wide array of temporal variability observed at timescales between minutes and days, making it difficult to understand the underlying magnetospheric biases driving these brightness differences.
Tom S. Stallard +9 more
wiley +1 more source
Onset of inflation in inhomogeneous cosmology
, 1996 We study how the initial inhomogeneities of the universe affect the onset of inflation in the closed universe. We consider the model of a chaotic inflation which is driven by a massive scalar field.
A. D. Linde +20 more
core +1 more source
Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.Abstract We analyze large‐scale shear zones that are exposed along the equatorial chasmata of Eastern Aphrodite Terra to understand the role of strain localization in the deformation of the Venusian crust. These shear zones dip at low angles opposite to the slopes, forming terraces that expose portions of the shear planes.
Thomas Kenkmann +2 more
wiley +1 more source
Inflation and Cosmological Perturbations [PDF]
, 2010 The purpose of these lectures is to give a pedagogical introduction to inflation and the production of the primordial perturbations, as well as a review of some of the latest developments in this domain.
openaire +3 more sources
Inflation from R^2 gravity: a new approach using nonlinear electrodynamics
, 2010 We discuss another approach regarding the inflation from the R^2 theory of gravity originally proposed by Starobinski. A non-singular early cosmology is proposed, where, adding a nonlinear electrodynamics Lagrangian to the high-order action, a bouncing ...
Acernese +41 more
core +1 more source
Against interpretive exclusivism* Contre l'exclusivisme interprétatif
Journal of the Royal Anthropological Institute, Volume 31, Issue 3, Page 645-662, September 2025.Interpretive exclusivism is the dogma that we can only understand cultural systems by interpreting them, thereby ruling out causal explanations of cultural phenomena using scientific methods, for example based on measurement, comparison, and experiment.
Harvey Whitehouse
wiley +1 more source
Quantum Cosmology of Quadratic f(R) Theories with a FRW Metric
Advances in Mathematical Physics, 2017 We study the quantum cosmology of a quadratic fR theory with a FRW metric, via one of its equivalent Horndeski type actions, where the dynamic of the scalar field is induced.
V. Vázquez-Báez, C. Ramírez
doaj +1 more source
Beyond Inflation: A Cyclic Universe Scenario
, 2004 Inflation has been the leading early universe scenario for two decades, and has become an accepted element of the successful `cosmic concordance' model. However, there are many puzzling features of the resulting theory.
Seinhardt, Paul J., Turok, Neil
core +1 more source
Model building with non-compact cosets
Physics Letters B, 2016 We explore Goldstone boson potentials in non-compact cosets of the form SO(n,1)/SO(n). We employ a geometric approach to find the scalar potential, and focus on the conditions under which it is compact in the large field limit.
Djuna Lize Croon
doaj +1 more source
Primordial Gravitational Waves and Reheating in a New Class of Plateau-Like Inflationary Potentials
Universe, 2018 We study a new class of inflation model parametrized by the Hubble radius, such that aH∝exp(−αφ)n. These potentials are plateau-like, and reduce to the power-law potentials in the simplest case n=2.
Siri Chongchitnan
doaj +1 more source