David Schlegel

Cette personne n’est plus à l’EPFL

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Publications associées (28)

Cosmological implications of baryon acoustic oscillation measurements

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

We derive constraints on cosmological parameters and tests of dark energy models from the combination of baryon acoustic oscillation (BAO) measurements with cosmic microwave background (CMB) data and a recent reanalysis of Type Ia supernova (SN) data. In p ...

American Physical Society2015

Baryon acoustic oscillations in the Lya forest of BOSS DR11 quasars

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

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 0.1 < z < 1.65 evolution of the bright end of the [O II] luminosity function

Johan Richard, Johan Comparat, Jean-Paul Richard Kneib, Timothée Guy Olivier Delubac, Jun Ma, David Schlegel, Zhenyu Wu

We present the [O II] (lambda lambda 3729; 3726) luminosity function measured in the redshift range 0.1 < z < 1.65 with unprecedented depth and accuracy. Our measurements are based on medium resolution flux-calibrated spectra of emission line galaxies with ...

EDP Sciences2015

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

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

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

The Eleventh And Twelfth Data Releases Of The Sloan Digital Sky Survey: Final Data From Sdss-Iii

Johan Comparat, Pierre Laurent, Jean-Paul Richard Kneib, Yuguang Chen, Timothée Guy Olivier Delubac, Jian Liu, David Schlegel, Yue Shen, Zheng Zheng

The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared high-resolution spectrograp ...

Iop Publishing Ltd2015

The Tenth Data Release Of The Sloan Digital Sky Survey: First Spectroscopic Data From The Sdss-Iii Apache Point Observatory Galactic Evolution Experiment

Johan Comparat, Arnaud Borde, Bo Ma, Jean-Paul Richard Kneib, Timothée Guy Olivier Delubac, David Schlegel, Ginevra Favole, Yue Shen, Zheng Zheng

The Sloan Digital Sky Survey (SDSS) has been in operation since 2000 April. This paper presents the Tenth Public Data Release (DR10) from its current incarnation, SDSS-III. This data release includes the first spectroscopic data from the Apache Point Obser ...

Iop Publishing Ltd2014

Measuring galaxy [OII] emission line doublet with future ground-based wide-field spectroscopic surveys (Research Note)

Johan Comparat, Jean-Paul Richard Kneib, David Schlegel

The next generation of wide-field spectroscopic redshift surveys will map the large-scale galaxy distribution in the redshift range 0.7

EDP Sciences2013

Stochastic bias of colour-selected BAO tracers by joint clustering-weak lensing analysis

Johan Comparat, Jean-Paul Richard Kneib, Huanyuan Shan, David Schlegel

The baryon acoustic oscillation (BAO) feature in the two-point correlation function of galaxies supplies a standard ruler to probe the expansion history of the Universe. We study here several galaxy selection schemes, aiming at building an emission-line ga ...

Oxford Univ Press2013

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