Einstein's conversion from his static to an expanding universe
, 2014 In 1917 Einstein initiated modern cosmology by postulating, based on general relativity, a homogeneous, static, spatially curved universe. To counteract gravitational contraction he introduced the cosmological constant.
Nussbaumer, Harry
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An $\{l_1,l_2,l_{\infty}\}$-Regularization Approach to High-Dimensional Errors-in-variables Models
, 2014 Several new estimation methods have been recently proposed for the linear regression model with observation error in the design. Different assumptions on the data generating process have motivated different estimators and analysis.
Belloni, Alexandre +2 more
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Public Release of RELXILL_NK: A Relativistic Reflection Model for Testing Einstein's Gravity [PDF]
, 2019 We present the public release version of relxill_nk, an X-ray reflection model for testing the Kerr hypothesis and general relativity. This model extends the relxill model that assumes the black hole spacetime is described by the Kerr metric.
Abdikamalov, Askar B. +5 more
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Systematic Continuum Errors in the Lyman-Alpha Forest and The Measured Temperature-Density Relation
, 2012 Continuum fitting uncertainties are a major source of error in estimates of the temperature-density relation (usually parametrized as a power-law, $T \propto \Delta^{\gamma - 1} $) of the inter-galactic medium (IGM) through the flux probability ...
Becker +18 more
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Calibrating convective-core overshooting with eclipsing binary systems. The case of low-mass main-sequence stars [PDF]
, 2016 In a robust statistical way, we quantify the uncertainty that affects the calibration of the overshooting efficiency parameter $\beta$ that is owing to the uncertainty on the observational data in double-lined eclipsing binary systems.
Degl'Innocenti, S. +3 more
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Extreme Value laws for dynamical systems under observational noise
, 2014 In this paper we prove the existence of Extreme Value Laws for dynamical systems perturbed by instrument-like-error, also called observational noise.
Faranda, Davide, Vaienti, Sandro
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Time delay between images of the lensed quasar UM673
, 2012 We study brightness variations in the double lensed quasar UM673 (Q0142-100) with the aim of measuring the time delay between its two images. In the paper we combine our previously published observational data of UM673 obtained during the 2003 - 2005 ...
A. S. Gusev +53 more
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Further characterization of the influence of crowding on medication errors
Journal of Emergencies, Trauma and Shock, 2013 Study Objectives: Our prior analysis suggested that error frequency increases disproportionately with Emergency department (ED) crowding. To further characterize, we measured this association while controlling for the number of charts reviewed and the ...
Hannah Watts +4 more
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Accounting for Transport Error in Inversions: An Urban Synthetic Data Experiment
Earth and Space Science, 2021 We present and discuss the use of a high‐dimensional computational method for atmospheric inversions that incorporates the space‐time structure of transport and dispersion errors.
Subhomoy Ghosh +3 more
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Power of Observational Hubble Parameter Data: a Figure of Merit Exploration
, 2011 We use simulated Hubble parameter data in the redshift range 0 \leq z \leq 2 to explore the role and power of observational H(z) data in constraining cosmological parameters of the {\Lambda}CDM model.
Ma, Cong, Zhang, Tong-Jie
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