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62 papers · 1 filter
Model-independent constraints on the cosmological anisotropic stress
Luca Amendola, Simone Fogli, Alejandro Guarnizo +2
The effective anisotropic stress or gravitational slip is a key variable in the characterisation of the physical origin of the dark energy, as it allows to test for a non-…
Planck intermediate results. XVI. Profile likelihoods for cosmological parameters
Planck Collaboration, P. A. R. Ade, N. Aghanim +180
We explore the 2013 Planck likelihood function with a high-precision multi-dimensional minimizer (Minuit). This allows a refinement of the Lambda-cdm best-fit solution with respect…
Planck intermediate results. XVII. Emission of dust in the diffuse interstellar medium from the far-infrared to microwave frequencies
Planck Collaboration, A. Abergel, P. A. R. Ade +196
The dust-HI correlation is used to characterize the emission properties of dust in the diffuse interstellar medium. We cross-correlate sky maps from Planck, WMAP, and DIRBE, at 17…
Planck 2013 results. XI. All-sky model of thermal dust emission
Planck Collaboration, A. Abergel, P. A. R. Ade +244
This paper presents an all-sky model of dust emission from the Planck 857, 545 and 353 GHz, and IRAS 100 micron data. Using a modified black-body fit to the data we present all-sky…
A Deep Search for Faint Galaxies Associated with Very Low-Redshift C IV Absorbers: A Case with Cold-Accretion Characteristics
Joseph N. Burchett, Todd M. Tripp, Jessica K. Werk +4
Studies of QSO absorber-galaxy connections are often hindered by inadequate information on whether faint/dwarf galaxies are located near the QSO sight lines. To investigate the con…
The Play Operator, the Truncated Variation and the Generalisation of the Jordan Decomposition
R. Ghomrasni, R. Łochowski
The play operator minimalizes the total variation on intervals , of functions approximating uniformly given regulated function with given accuracy and starting from a…