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AtLAST -- Determination of Halo Mass Density Profiles at kpc Scales through Magnification Bias
Joaquín González-Nuevo, Laura Bonavera, Juan Alberto Cano +9
Magnification bias, the lensing-induced modification of background source number counts, provides a uniquely powerful probe of the mass density profiles of galaxies and clusters do…
AtLAST -- Cosmology with submillimetre galaxies magnification bias
Laura Bonavera, Joaquin Gonzalez-Nuevo, Juan Alberto Cano +10
Magnification bias offers a uniquely powerful and independent route to cosmological information. As a gravitational-lensing observable, it probes galaxy-matter correlations without…
Cosmic magnification on multi-catalogue Herschel submillimetre galaxies
R. Fernandez-Fernandez, M. M. Cueli, J. González-Nuevo +6
{Submillimetre galaxies (SMGs) are excellent background sources for magnification-bias studies, but the limited sky coverage in the submillimetre (sub-mm) band constrains their sta…
Cosmic magnification on high-redshift submillimeter galaxies
Marcos M. Cueli, Joaquín González-Nuevo, Laura Bonavera +1
Weak lensing magnification probes the correlation between galaxies and the underlying matter field in a similar fashion to galaxy-galaxy lensing shear. Although it has long been si…
Recovering the CMB signal with neural networks
J. M. Casas, L. Bonavera, J. González-Nuevo +2
Component separation is the process of extracting one or more emission sources in astrophysical maps. It is therefore crucial to develop models that can accurately clean the cosmic…
Toward the measurement of neutrino masses: Performance of cosmic magnification with submillimeter galaxies
M. M. Cueli, S. R. Cabo, J. González-Nuevo +6
The phenomenon of magnification bias can induce a non-negligible angular correlation between two samples of galaxies with nonoverlapping redshift distributions. This signal is part…
Cosmic Insights from Galaxy Clusters: Exploring Magnification Bias on Sub-millimeter Galaxies
Rebeca Fernández-Fernández, Laura Bonavera, David Crespo +4
Magnification bias, an observational effect of gravitational lensing in the weak regime, allows testing the cosmological model through angular correlations of sources at different…
Recovering CMB polarization maps with neural networks: Performance in realistic simulations
J. M. Casas, L. Bonavera, J. González-Nuevo +7
Recovering the polarized cosmic microwave background (CMB) is essential for shedding light on the exponential expansion of the very early Universe, known as cosmic inflation. Achie…
Methodological refinement of the submillimeter galaxy magnification bias. II. Cosmological analysis with tomography
L. Bonavera, M. M. Cueli, J. González-Nuevo +2
This paper is the third in a series on submillimeter galaxy magnification bias, focusing on the tomographic scenario. It refines the methodology used to constrain the halo occupati…
Methodological refinement of the submillimeter galaxy magnification bias. I. Cosmological analysis with a single redshift bin
Marcos M. Cueli, Joaquín González-Nuevo, Laura Bonavera +3
The main goal of this work, the second in a three-paper series, is to test the impact of a methodological improvement in measuring the magnification bias signal on a sample of subm…
Methodological refinement of the submillimeter galaxy cross-correlation function measurements and their uncertainty estimation
J. González-Nuevo, L. Bonavera, M. M. Cueli +2
In this study, we aim to develop a new methodology to estimate the cross-correlation function and uncertainties and apply it to the analysis of magnification bias in galaxy surveys…
Constraining the polarisation flux density and angle of point sources by training a convolutional neural network
J. M. Casas, L. Bonavera, J. González-Nuevo +7
Constraining the polarisation properties of extragalactic point sources is a relevant task not only because they are one of the main contaminants for primordial cosmic microwave ba…
CENN: A fully convolutional neural network for CMB recovery in realistic microwave sky simulations
J. M. Casas, L. Bonavera, J. González-Nuevo +7
Component separation is the process with which emission sources in astrophysical maps are generally extracted by taking multi-frequency information into account. It is crucial to d…
Tomography-based observational measurements of the halo mass function via the submillimeter magnification bias
M. M. Cueli, L. Bonavera, J. Gonzalez-Nuevo +3
Aims. The main goal of this paper is to derive observational constraints on the halo mass fuction (HMF) by performing a tomographic analysis of the magnification bias signal on a s…
Cosmological and astrophysical results exploiting magnification bias with high-z sub-millimetre galaxies
L. Bonavera, M. M. Cueli, J. Gonzalez-Nuevo
The high-z submillimeter galaxies (SMGs) can be used as background sample for gravitational lensing studies thanks to their magnification bias, which can manifest itself through a…
Galaxy cluster mass density profile derived using the submillimetre galaxies magnification bias
L. Fernandez, M. M. Cueli, J. González-Nuevo +4
In this work we want to study the average mass density profile of tens to hundreds of clusters of galaxies acting as lenses that produce a magnification bias on the SMGs, and to es…
Cosmic backgrounds from the radio to the far-infrared: recent results and perspectives from cosmological and astrophysical surveys
Carlo Burigana, Elia Sefano Battistelli, Laura Bonavera +8
Cosmological and astrophysical surveys in various wavebands, in particular from the radio to the far-infrared, offer a unique view of the universe's properties and the formation an…
Cosmology with the sub-millimetre galaxies magnification bias: Tomographic Analysis
L. Bonavera, M. M. Cueli, J. González-Nuevo +5
As in Gonzalez-Nuevo et al. 2017 and Bonavera et al. 2019, the high-z sub-millimetre galaxies can be used as background sample for gravitational lensing studies thanks to their mag…
A direct and robust method to observationally constrain the halo mass function via the submillimeter magnification bias: Proof of concept
M. M. Cueli, L. Bonavera, J. González-Nuevo +1
Aims. The main purpose of this work is to provide a method to derive tabulated observational constraints on the halo mass function (HMF) by studying the magnification bias effect o…
Cosmological constraints with the sub-millimetre galaxies Magnification Bias after large scale bias corrections
J. Gonzalez-Nuevo, M. M. Cueli, L. Bonavera +4
The study of the magnification bias produced on high-redshift sub-millimetre galaxies by foreground galaxies through the analysis of the cross-correlation function was recently dem…
Cosmology with the submillimetre galaxies magnification bias: Proof of concept
L. Bonavera, J. González-Nuevo, M. M. Cueli +6
Context. As recently demonstrated, high-z submillimetre galaxies (SMGs) are the perfect background sample for tracing the mass density profiles of galaxies and clusters (baryonic a…
QSOs sigposting cluster size halos as gravitational lenses: halo mass, projected mass density profile and concentration at
L. Bonavera, J. González-Nuevo, S. L. Suárez Gómez +6
Magnification bias is a gravitational lensing effect that is normally overlooked because it is considered sub-optimal in comparison with the lensing shear. Thanks to the demonstrat…
Planck 2018 results. II. Low Frequency Instrument data processing
Planck Collaboration, Y. Akrami, F. Argüeso +148
We present a final description of the data-processing pipeline for the Planck, Low Frequency Instrument (LFI), implemented for the 2018 data release. Several improvements have been…
Forecasting Polarized Radio Sources for CMB observations
G. Puglisi, V. Galluzzi, L. Bonavera +7
We combine the latest datasets obtained with different surveys to study the frequency dependence of polarized emission coming from Extragalactic Radio Sources (ERS). We consider da…