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Observational probes of cosmic acceleration

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In this article, the authors present extensive forecasts for constraints on the dark energy equation of state and parameterized deviations from General Relativity, achievable with Stage III and Stage IV experimental programs that incorporate supernovae, BAO, weak lensing, and cosmic microwave background data.
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This article is published in Physics Reports.The article was published on 2013-09-10 and is currently open access. It has received 1253 citations till now. The article focuses on the topics: Dark energy & Lambda-CDM model.

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Cosmic Growth History and Expansion History

TL;DR: In this article, the authors separate out the growth dependence on the expansion history and introduce a new growth index parameter \gamma that quantifies the gravitational modification, which can distinguish the nature of the physics responsible for accelerating cosmic expansion: an additional smooth component - dark energy - or a modification of the gravitational field equations.
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Reconstructing teleparallel gravity with cosmic structure growth and expansion rate data

TL;DR: In this paper, a machine learning technique is applied to growth and expansion rate data in the context of teleparallel gravity (TG) by using a combined approach of Hubble data together with redshift-space-distortion $f\sigma_8$ data which together are used to reconstruct the TG Lagrangian via Gaussian processes.
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Parameters of cosmological models and recent astronomical observations

TL;DR: Pahwa et al. as mentioned in this paper calculate parameters of three models describing accelerated expansion of the universe: the ΛCDM model, the model with generalized Chaplygin gas (GCG) and the multidimensional model of I.R. Seshadri.
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Testing the Quasar Hubble Diagram with LISA Standard Sirens

TL;DR: In this article, the authors show that the laser interferometer space antenna (LISA) will efficiently test this claim with standard sirens at high redshift, defined by the coincident gravitational wave (GW) and electromagnetic (EM) observations of the merger of massive black hole binaries (MBHBs).
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The relationship between infrared, optical, and ultraviolet extinction

TL;DR: In this article, the average extinction law over the 3.5 micron to 0.125 wavelength range was derived for both diffuse and dense regions of the interstellar medium. And the validity of the law over a large wavelength interval suggests that the processes which modify the sizes and compositions of grains are stochastic in nature.
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