Publications associées à Constraints on dark matter to dark radiation conversion in the late universe with DES-Y1 and external data

Warm-hot baryons comprise 5-10 per cent of filaments in the cosmic web

Jean-Paul Richard Kneib, Mathilde Jauzac, Céline Tchernin, Richard Massey, Johan Richard

Observations of the cosmic microwave background indicate that baryons account for 5 per cent of the Universe's total energy content(1). In the local Universe, the census of all observed baryons falls short of this estimate by a factor of two(2,3). Cosmolog ...

Nature Publishing Group2015

Baryon acoustic oscillations in the Lya forest of BOSS DR11 quasars

Jean-Paul Richard Kneib, David Schlegel, Timothée Guy Olivier Delubac

We report a detection of the baryon acoustic oscillation (BAO) feature in the flux-correlation function of the Ly alpha forest of high-redshift quasars with a statistical significance of five standard deviations. The study uses 137 562 quasars in the redsh ...

EDP Sciences2015

The Sdss-Iv Extended Baryon Oscillation Spectroscopic Survey: Quasar Target Selection

Jean-Paul Richard Kneib, Johan Comparat, David Schlegel, Pierre Laurent

As part of the Sloan Digital Sky Survey (SDSS) IV the extended Baryon Oscillation Spectroscopic Survey (eBOSS) will improve measurements of the cosmological distance scale by applying the Baryon Acoustic Oscillation (BAO) method to quasar samples. eBOSS wi ...

Iop Publishing Ltd2015

Planck intermediate results XXIV. Constraints on variations in fundamental constants

Julien Lesgourgues, Fabio Finelli

Any variation in the fundamental physical constants, more particularly in the fine structure constant, a, or in the mass of the electron, me, affects the recombination history of the Universe and cause an imprint on the cosmic microwave background angular ...

EDP Sciences2015

Planck 2013 results. XVI. Cosmological parameters

Xin Chen, Julien Lesgourgues, Fabio Finelli, Jan Hamann

This paper presents the first cosmological results based on Planck measurements of the cosmic microwave background (CMB) temperature and lensing-potential power spectra. We find that the Planck spectra at high multipoles (l greater than or similar to 40) a ...

Edp Sciences S A2014

Planck 2013 results. XX. Cosmology from Sunyaev-Zeldovich cluster counts

Julien Lesgourgues, Fabio Finelli

We present constraints on cosmological parameters using number counts as a function of redshift for a sub-sample of 189 galaxy clusters from the Planck SZ (PSZ) catalogue. The PSZ is selected through the signature of the Sunyaev-Zeldovich (SZ) effect, and ...

Edp Sciences S A2014

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

Julien Lesgourgues, Jason Douglas McEwen, Fabio Finelli

The new cosmic microwave background (CMB) temperature maps from Planck provide the highest-quality full-sky view of the surface of last scattering available to date. This allows us to detect possible departures from the standard model of a globally homogen ...

Edp Sciences S A2014

Cosmology From Gravitational Lens Time Delays And Planck Data

Frédéric Courbin, Georges Meylan, Malte Tewes

Under the assumption of a flat Lambda CDM cosmology, recent data from the Planck satellite point toward a Hubble constant that is in tension with that measured by gravitational lens time delays and by the local distance ladder. Prosaically, this difference ...

Iop Publishing Ltd2014

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Constraints on dark matter to dark radiation conversion in the late universe with DES-Y1 and external data

Warm-hot baryons comprise 5-10 per cent of filaments in the cosmic web

Baryon acoustic oscillations in the Lya forest of BOSS DR11 quasars

The Sdss-Iv Extended Baryon Oscillation Spectroscopic Survey: Quasar Target Selection

Planck intermediate results XXIV. Constraints on variations in fundamental constants

On the detection of point sources in Planck LFI 70 GHz CMB maps based on cleaned K-map

Planck 2013 results. XVI. Cosmological parameters

Separate constraints on early and late cosmology

Planck 2013 results. XX. Cosmology from Sunyaev-Zeldovich cluster counts

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

Cosmology From Gravitational Lens Time Delays And Planck Data

Graph Chatbot

Chattez avec Graph Search

On the detection of point sources in Planck LFI 70 GHz CMB maps based on cleaned K-map

Baryon acoustic oscillations in the Lya forest of BOSS DR11 quasars

Warm-hot baryons comprise 5-10 per cent of filaments in the cosmic web

The Sdss-Iv Extended Baryon Oscillation Spectroscopic Survey: Quasar Target Selection

Planck intermediate results XXIV. Constraints on variations in fundamental constants

Planck 2013 results. XVI. Cosmological parameters

Separate constraints on early and late cosmology

Planck 2013 results. XX. Cosmology from Sunyaev-Zeldovich cluster counts

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

Cosmology From Gravitational Lens Time Delays And Planck Data