We describe our non-linear emulation (i.e. interpolation) framework that combines the halo occupation distribution (HOD) galaxy bias model with N-body...
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PublicationCosmology with galaxy-galaxy lensing on non-perturbative scales: emulation method and application to BOSS LOWZ
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TalkDark Energy and Cosmic Sound
I will discuss how the acoustic oscillations that propagate in the photon-baryon fluid during the first million years of the Universe provide a robust method...
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PublicationDark Energy Survey Year 3 results: galaxy clustering and systematics treatment for lens galaxy samples
In this work, we present the galaxy clustering measurements of the two DES lens galaxy samples: a magnitude-limited sample optimized for the measurement of...
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PublicationDark Energy Survey Year 3 results: redshift calibration of the MAGLIM lens sample from the combination of SOMPZ and clustering and its impact on cosmology
We present an alternative calibration of the MAGLIM lens sample redshift distributions from the Dark Energy Survey (DES) first 3 yr of data (Y3). The new...
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PublicationDark Energy Survey Year 3 results: redshift calibration of the weak lensing source galaxies
Determining the distribution of redshifts of galaxies observed by wide-field photometric experiments like the Dark Energy Survey (DES) is an essential component...
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NewsDESI opens its 5.000 eyes to capture the colors of the Cosmos
The new instrument, the result of an international collaboration of almost a hundred institutions, including the Instituto de Astrofísica de Canarias, has made...
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PublicationElectromagnetic Dark Energy
We introduce a new model for dark energy in the Universe in which a small cosmological constant is generated by ordinary electromagnetic vacuum energy. The...
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PublicationEuclid preparation. I. The Euclid Wide Survey
Euclid is a mission of the European Space Agency that is designed to constrain the properties of dark energy and gravity via weak gravitational lensing and...
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PublicationEuclid preparation. XI. Mean redshift determination from galaxy redshift probabilities for cosmic shear tomography
The analysis of weak gravitational lensing in wide-field imaging surveys is considered to be a major cosmological probe of dark energy. Our capacity to...