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48 papers · 1 filter
Gravitational energy as dark energy: Average observational quantities
David L. Wiltshire
In the timescape scenario cosmic acceleration is understand as an apparent effect, due to gravitational energy gradients that grow when spatial curvature gradients become significa…
Gravitational energy as dark energy: Towards concordance cosmology without Lambda
David L. Wiltshire
I briefly outline a new physical interpretation to the average cosmological parameters for an inhomogeneous universe with backreaction. The variance in local geometry and gravitati…
From time to timescape - Einstein's unfinished revolution
David L. Wiltshire
I argue that Einstein overlooked an important aspect of the relativity of time in never quite realizing his quest to embody Mach's principle in his theory of gravity. As a step tow…
Fast Beam Conditions Monitor BCM1F for the CMS Experiment
A. Bell, E. Castro, R. Hall-Wilton +8
The CMS Beam Conditions and Radiation Monitoring System, BRM, will support beam tuning, protect the CMS detector from adverse beam conditions, and measure the accumulated dose clos…
Identifying the Rooted Species Tree from the Distribution of Unrooted Gene Trees under the Coalescent
Elizabeth S. Allman, James H. Degnan, John A. Rhodes
Gene trees are evolutionary trees representing the ancestry of genes sampled from multiple populations. Species trees represent populations of individuals -- each with many genes -…
Limb-darkening measurements for a cool red giant in microlensing event OGLE 2004-BLG-482
M. Zub, A. Cassan, D. Heyrovsky +47
Aims: We present a detailed analysis of OGLE 2004-BLG-482, a relatively high-magnification single-lens microlensing event which exhibits clear extended-source effects. These events…