Results 81 to 90 of about 4,402,515 (251)
Meteoritics &Planetary Science, EarlyView.Abstract In the search for life on Mars, understanding the origin of preserved organics is critical. Expected sources include exogenous delivery, endogenous synthesis, and potentially life. Environmental processing by ultraviolet (UV) irradiation can alter these organics, obscuring hallmarks of their origin. To deconvolve these effects, we conducted an
D. K. Buckner +7 more
wiley +1 more source
Description and terrestrial ages of the Calama Area Meteorite Collection (Atacama Desert, Chile)
Meteoritics &Planetary Science, EarlyView.Abstract We present a comprehensive study of a meteorite collection from the Atacama Desert (Chile), the driest and most climatically stable desert in the world. This collection includes meteorites from three adjacent Dense Collection Areas (DCAs) in the northern part of the Atacama Desert: Calama, Sierra Gorda, and Chug Chug, referred to as the ...
Carine Sadaka +9 more
wiley +1 more source
20. Global cosmological parameters: H0, Ω M,andΛ 1 20. GLOBAL COSMOLOGICAL
, 2008 This review surveys the current status of the determination of the three cosmological parameters, the Hubble constant H0, the mass density parameter ΩM and the cosmological constant Λ.
Parameters H, Ω Λ =λ/h
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Cosmological backreaction : from the local Hubble expansion rate to dark energy [PDF]
, 2008 Li N. Cosmological backreaction : from the local Hubble expansion rate to dark energy. Bielefeld (Germany): Bielefeld University; 2008.Despite the glorious successes of modern cosmology, our understanding of the cosmic substitution is still limited to a ...
Li, Nan
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Evidence for dynamical dark energy with an evolving Hubble constant
Astronomy & AstrophysicsContext. Hubble constant tension, together with the recent indications of dynamical dark energy proposed from the Dark Energy Spectroscopic Instrument (DESI) baryon acoustic oscillation (BAO) measurements, poses significant challenges for the standard ...
Wang Yi-Ying, Li Yin-Jie, Fan Yi-Zhong
doaj +1 more source
On the ε cosmological parameter
Serbian Astronomical Journal, 2015 In the paper On asymptotic solutions of Friedmann equations (Mijajlovic et al. 2012), the theory of regularly varying functions in the sense of Karamata is applied in an asymptotic analysis of solutions of Friedmann equations. As is well known, solutions of these equations are used to represent cosmological parameters.
Mijajlović Ž., Pejović N., Marić V.
openaire +2 more sources
The Analogia Entis for Reformed Theology: Retrieving Calvin's Implicit Metaphysics
Modern Theology, EarlyView.Abstract The famous controversy between Emil Brunner and Karl Barth which led to Barth's ‘No!’ was driven by disagreements over how to read John Calvin: Barth and Brunner never agreed on whether Calvin had a doctrine of the analogy of being. This article rekindles the debate.
Silvianne Aspray
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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Cosmography of the Dynamical Cosmological «Constant»
East European Journal of Physics, 2019 The paper considers a cosmographical approach to analyze cosmological models. Cosmography is a method to describe the kinematics of the cosmological expansion based only on the cosmological principle. We consider a method of treating free parameters of a
Oryna Ivashtenko
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Life, but Not as We Know It: Why Fine‐Tuning Arguments Fail
Noûs, EarlyView.ABSTRACT Definitions of “life” and theories of life are systematically neglected in arguments for and from fine‐tuning. Despite claims to be neutral about the definition of “life,” fine‐tuning arguments generally presuppose that life requires a form of structural complexity only afforded by physicochemical complexity of the sort with which we are ...
Joe Gough
wiley +1 more source