Zobrazeno 1 - 10
of 193
pro vyhledávání: '"Roukema, Boudewijn"'
Autor:
Zhong, Fucheng, Napolitano, Nicola R., Heneka, Caroline, Li, Rui, Bauer, Franz Erik, Bouche, Nicolas, Comparat, Johan, Kim, Young-Lo, Krogager, Jens-Kristian, Longhetti, Marcella, Loveday, Jonathan, Roukema, Boudewijn F., Rouse, Benedict L., Salvato, Mara, Tortora, Crescenzo, Assef, Roberto J., Cassarà, Letizia P., Costantin, Luca, Croom, Scott, Davies, Luke J M, Fritz, Alexander, Guiglion, Guillaume, Humphrey, Andrew, Pompei, Emanuela, Ricci, Claudio, Sifón, Cristóbal, Tempel, Elmo, Zafar, Tayyaba
Large sky spectroscopic surveys have reached the scale of photometric surveys in terms of sample sizes and data complexity. These huge datasets require efficient, accurate, and flexible automated tools for data analysis and science exploitation. We p
Externí odkaz:
http://arxiv.org/abs/2311.04146
Curved-spacetime geometric-optics maps derived from a deep photometric survey should contain information about the three-dimensional matter distribution and thus about cosmic voids in the survey, despite projection effects. We explore to what degree
Externí odkaz:
http://arxiv.org/abs/2304.00591
Publikováno v:
Physical Review D 107 (2023) 063545
We study the properties of the Newtonian gravitational potential in a spherical Universe for different topologies. For this, we use the non-Euclidean Newtonian theory developed in Vigneron [2022, Class. & Quantum Gravity, 39, 155006] describing Newto
Externí odkaz:
http://arxiv.org/abs/2201.09102
Publikováno v:
Classical & Quantum Gravity 39 (2022) 215007
Several software packages for relativistic cosmological simulations that do not fully implement the Einstein equation have recently been developed. Two of the free-licensed ones are inhomog and gevolution. A key question is whether globally emergent
Externí odkaz:
http://arxiv.org/abs/2112.14174
Autor:
Peper, Marius, Roukema, Boudewijn F.
Publikováno v:
Monthly Notices of the Royal Astronomical Society 505 (2021) 1223
Voids may affect galaxy formation via weakening mass infall or increasing disk sizes, which could potentially play a role in the formation of giant low surface brightness galaxies (LSBGs). If a dark matter halo forms at the potential hill correspondi
Externí odkaz:
http://arxiv.org/abs/2010.03742
Autor:
Roukema, Boudewijn F.
Publikováno v:
PeerJ 9 (2021) e11856
The noise in daily infection counts of an epidemic should be super-Poissonian due to intrinsic epidemiological and administrative clustering. Here, we use this clustering to classify the official national SARS-CoV-2 daily infection counts and check f
Externí odkaz:
http://arxiv.org/abs/2007.11779
Autor:
Roukema, Boudewijn F.
Is a scientific research paper based on (i) public, online observational data files and (ii) providing free-licensed software for reproducing its results easy to reproduce by the same author a decade later? This paper attempts to reproduce a cosmic t
Externí odkaz:
http://arxiv.org/abs/2008.07380
Autor:
Akhlaghi, Mohammad, Infante-Sainz, Raúl, Roukema, Boudewijn F., Khellat, Mohammadreza, Valls-Gabaud, David, Baena-Gallé, Roberto
Publikováno v:
Computing in Science & Engineering (2021), vol. 23, issue 3, pp. 82-91
Analysis pipelines commonly use high-level technologies that are popular when created, but are unlikely to be readable, executable, or sustainable in the long term. A set of criteria is introduced to address this problem: Completeness (no execution r
Externí odkaz:
http://arxiv.org/abs/2006.03018
Publikováno v:
Physics Review D 101 (2020) 104046
Torsion is a non-Riemannian geometrical extension of general relativity that allows including the spin of matter and the twisting of spacetime. Cosmological models with torsion have been considered in the literature to solve problems of either the ve
Externí odkaz:
http://arxiv.org/abs/2003.06528
Publikováno v:
Journal of Cosmology and Astroparticle Physics 12 (2019) 049
Cosmological observational analysis frequently assumes that the Universe is spatially flat. We aim to non-perturbatively check the conditions under which a flat or nearly flat expanding dust universe, including the LCDM model if interpreted as strict
Externí odkaz:
http://arxiv.org/abs/1902.09064