Zobrazeno 1 - 10
of 329
pro vyhledávání: '"Casas, J. M."'
Autor:
Cueli, M. M., Cabo, S. R., González-Nuevo, J., Bonavera, L., Lapi, A., Viel, M., Crespo, D., Casas, J. M., Fernández-Fernández, R.
The phenomenon of magnification bias can induce a non-negligible angular correlation between two samples of galaxies with nonoverlapping redshift distributions. This signal is particularly clear when background submillimeter galaxies are used, and ha
Externí odkaz:
http://arxiv.org/abs/2406.03236
Gravitational lensing is a powerful tool for studying the distribution of mass in the Universe. Understanding the magnification bias effect in gravitational lensing and its impact on the flux of sub-millimetre galaxies (SMGs) is crucial for accurate
Externí odkaz:
http://arxiv.org/abs/2403.01990
Autor:
Casas, J. M., Jafari, S. Hadi
We introduce the notion of isoclinism between central extensions in the category of algebras with bracket. We provide several equivalent conditions under which algebras with bracket are isoclinic. We also study the connection between isoclinism and t
Externí odkaz:
http://arxiv.org/abs/2311.13858
Autor:
Casas, J. M., Bonavera, L., González-Nuevo, J., Puglisi, G., Baccigalupi, C., Cueli, M. M., Crespo, D., González-Gutiérrez, C., de Cos, F. J.
Recovering the polarized cosmic microwave background (CMB) is crucial for shading light on Cosmic Inflation. Methods with different characteristics should be developed and optimized. We aim to use a neural network called CENN and train it for recover
Externí odkaz:
http://arxiv.org/abs/2310.07590
Publikováno v:
A&A 686, A191 (2024)
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 occupation distribution model and cosmological parameters within a flat $\Lamb
Externí odkaz:
http://arxiv.org/abs/2305.13836
The measurement of the cross-correlation function is crucial to assess magnification bias in galaxy surveys. Previous works used mini-tile subsampling, but accurately determining the integral constraint (IC) correction for unbiased estimation is chal
Externí odkaz:
http://arxiv.org/abs/2305.13834
Autor:
Casas, J. M., Bonavera, L., González-Nuevo, J., Cueli, M. M., Crespo, D., Goitia, E., González-Gutiérrez, C., Santos, J. D., Sánchez, M. L., de Cos, F. J.
Publikováno v:
A&A 670, A76 (2023)
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 background B-mode detection if the tensor-to-scalar ratio is lower than
Externí odkaz:
http://arxiv.org/abs/2212.13055
In this work, we want to exploit the magnification bias of the SMGs using two different foreground samples, quasi-stellar objects (QSOs) and galaxies. Our aim is to study and compare their mass density profiles and estimate their masses and concentra
Externí odkaz:
http://arxiv.org/abs/2210.17318
Autor:
Casas, J. M., Bonavera, L., González-Nuevo, J., Baccigalupi, C., Cueli, M. M., Crespo, D., Goitia, E., Santos, J. D., Sánchez, M. L., de Cos, F. J.
Publikováno v:
A&A 666, A89 (2022)
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 develop more reliable methods for component separation for future CMB e
Externí odkaz:
http://arxiv.org/abs/2205.05623
Publikováno v:
A&A 662, A44 (2022)
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 sample of background submillimeter galaxies. The results can then be co
Externí odkaz:
http://arxiv.org/abs/2203.14638