Publications related to Planck 2013 results. XXVI. Background geometry and topology of the Universe

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Fast and accurate CMB computations in non-flat FLRW universes

Julien Lesgourgues

We present a new method for calculating CMB anisotropies in a non-flat Friedmann universe, relying on a very stable algorithm for the calculation of hyperspherical Bessel functions, that can be pushed to arbitrary precision levels. We also introduce a new ...

Iop Publishing Ltd2014

Planck 2013 results. XXIII. Isotropy and statistics of the CMB

Julien Lesgourgues, Jason Douglas McEwen, Ji Hyun Kim, Fabio Finelli

The two fundamental assumptions of the standard cosmological model - that the initial fluctuations are statistically isotropic and Gaussian - are rigorously tested using maps of the cosmic microwave background (CMB) anisotropy from the Planck satellite. Th ...

Edp Sciences S A2014

Planck CMB nomalies: astrophysical and cosmological secondary effects and the curse of masking

Anaïs Marie Rassat

Large-scale anomalies have been reported in CMB data with both WMAP and Planck data. These could be due to foreground residuals and or systematic effects, though their confirmation with Planck data suggests they are not due to a problem in the WMAP or Plan ...

Iop Publishing Ltd2014

LFI systematic uncertainties

Julien Lesgourgues, Fabio Finelli

We present the current estimate of instrumental and systematic effect uncertainties for the Planck-Low Frequency Instrument relevant to the first release of the Planck cosmological results. We give an overview of the main effects and of the tools and metho ...

Edp Sciences S A2014

Joint Planck and WMAP CMB map reconstruction

Jean-Luc Starck, Anaïs Marie Rassat

We present a novel estimate of the cosmological microwave background (CMB) map by combining the two latest full-sky microwave surveys: WMAP nine-year and Planck PR1. The joint processing benefits from a recently introduced component separation method coine ...

EDP Sciences2014

Scalar masses in general N=2 gauged supergravity theories

Claudio Scrucca, Paul Smyth, Francesca Catino

We readdress the question of whether any universal upper bound exists on the square mass m(2) of the lightest scalar around a supersymmetry breaking vacuum in generic N=2 gauged supergravity theories for a given gravitino mass m(3/2) and cosmological const ...

Springer2014

Cosmological constraints on Lorentz violating dark energy

Julien Lesgourgues, Sergey Sibiryakov, Diego Blas Temino, Benjamin Audren

The role of Lorentz invariance as a fundamental symmetry of nature has been lately reconsidered in different approaches to quantum gravity. It is thus natural to study whether other puzzles of physics may be solved within these proposals. This may be the c ...

Iop Publishing Ltd2013

Two Accurate Time-Delay Distances From Strong Lensing: Implications For Cosmology

Frédéric Courbin, Georges Meylan, Malte Tewes

Strong gravitational lenses with measured time delays between the multiple images and models of the lens mass distribution allow a one-step determination of the time-delay distance, and thus a measure of cosmological parameters. We present a blind analysis ...

American Astronomical Society2013

Planck 2013 results. XXVI. Background geometry and topology of the Universe

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Fast and accurate CMB computations in non-flat FLRW universes

Probing nuclear rates with Planck and BICEP2

Planck 2013 results. XXIII. Isotropy and statistics of the CMB

Planck CMB nomalies: astrophysical and cosmological secondary effects and the curse of masking

LFI systematic uncertainties

Joint Planck and WMAP CMB map reconstruction

Scalar masses in general N=2 gauged supergravity theories

Moduli spaces of toric manifolds

Cosmological constraints on Lorentz violating dark energy

Two Accurate Time-Delay Distances From Strong Lensing: Implications For Cosmology

Fast and accurate CMB computations in non-flat FLRW universes

Probing nuclear rates with Planck and BICEP2

Planck 2013 results. XXIII. Isotropy and statistics of the CMB

Planck CMB nomalies: astrophysical and cosmological secondary effects and the curse of masking

LFI systematic uncertainties

Joint Planck and WMAP CMB map reconstruction

Scalar masses in general N=2 gauged supergravity theories

Moduli spaces of toric manifolds

Cosmological constraints on Lorentz violating dark energy

Two Accurate Time-Delay Distances From Strong Lensing: Implications For Cosmology