Zobrazeno 1 - 10
of 226
pro vyhledávání: '"Benjamin D Wandelt"'
Autor:
Niall Jeffrey, Benjamin D Wandelt
Publikováno v:
Machine Learning: Science and Technology, Vol 5, Iss 1, p 015008 (2024)
Evidence Networks can enable Bayesian model comparison when state-of-the-art methods (e.g. nested sampling) fail and even when likelihoods or priors are intractable or unknown. Bayesian model comparison, i.e. the computation of Bayes factors or evide
Externí odkaz:
https://doaj.org/article/ccdb09302dea48f99a8b5ab82128fd50
Autor:
T Lucas Makinen, Tom Charnock, Pablo Lemos, Natalie Porqueres, Alan F Heavens, Benjamin D Wandelt
Publikováno v:
The Open Journal of Astrophysics, Vol 5, Iss 1 (2022)
Externí odkaz:
https://doaj.org/article/4c9142941bc44022a3e30d352c38a827
Publikováno v:
The Astrophysical Journal Letters, Vol 977, Iss 2, p L44 (2024)
Bias models relating the dark matter field to the spatial distribution of halos are widely used in current cosmological analyses. Many models predict halos purely from the local Eulerian matter density, yet bias models in perturbation theory require
Externí odkaz:
https://doaj.org/article/274bbc8c1ee04b5086a0dffab79c7838
Autor:
Bruno Regaldo-Saint Blancard, François Levrier, Erwan Allys, Niall Jeffrey, François Boulanger, Benjamin D. Wandelt
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters
Monthly Notices of the Royal Astronomical Society: Letters, Oxford Journals, In press, 510 (1), pp.L1-L6. ⟨10.1093/mnrasl/slab120⟩
Monthly Notices of the Royal Astronomical Society: Letters, Oxford Journals, In press, 510 (1), pp.L1-L6. ⟨10.1093/mnrasl/slab120⟩
With a single training image and using wavelet phase harmonic augmentation, we present polarized Cosmic Microwave Background (CMB) foreground marginalization in a high-dimensional likelihood-free (Bayesian) framework. We demonstrate robust foreground
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0b9a6369e279f56bef2b3eb827b2e03
https://doi.org/10.1093/mnrasl/slab120
https://doi.org/10.1093/mnrasl/slab120
Autor:
William R Coulton, Francisco Villaescusa-Navarro, Drew Jamieson, Marco Baldi, Gabriel Jung, Dionysios Karagiannis, Michele Liguori, Licia Verde, Benjamin D. Wandelt
We investigate how much can be learnt about four types of primordial non-Gaussianity (PNG) from small-scale measurements of the halo field. Using the QUIJOTE-PNG simulations, we quantify the information content accessible with measurements of the hal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9348ad9ad743cf65132b6691f0930c70
Autor:
Gabriel Jung, Dionysios Karagiannis, Michele Liguori, Marco Baldi, William R. Coulton, Drew Jamieson, Licia Verde, Francisco Villaescusa-Navarro, Benjamin D. Wandelt
Future large-scale structure surveys are expected to improve current bounds on primordial non-Gaussianity (PNG), with a significant impact on our understanding of early universe physics. The level of such improvements will however strongly depend on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83435820fab07cb1d1317bfc5aea20ce
Publikováno v:
Journal of Cosmology and Astroparticle Physics. 2023:E02
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e628fa31ef98cfa627041611a43c2fb
https://doi.org/10.1088/1475-7516/2023/04/e02
https://doi.org/10.1088/1475-7516/2023/04/e02
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 503 (2), pp.1897-1914. ⟨10.1093/mnras/stab430⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 503 (2), pp.1897-1914. ⟨10.1093/mnras/stab430⟩
To exploit the power of next-generation large-scale structure surveys, ensembles of numerical simulations are necessary to give accurate theoretical predictions of the statistics of observables. High-fidelity simulations come at a towering computatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7922d431b7adcfacbe20bb9d5c643a7c
https://doi.org/10.1093/mnras/stab430
https://doi.org/10.1093/mnras/stab430
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 502 (1), pp.1136-1144. ⟨10.1093/mnras/stab001⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 502 (1), pp.1136-1144. ⟨10.1093/mnras/stab001⟩
Alternative theories of gravity predict modifications in the propagation of gravitational waves (GW) through space-time. One of the smoking-gun predictions of such theories is the change in the GW luminosity distance to GW sources as a function of re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e46d1f940cb2c0c46702811d7fff5cc2
https://doi.org/10.1093/mnras/stab001
https://doi.org/10.1093/mnras/stab001
Publikováno v:
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2020, 494 (2), pp.1956-1970. ⟨10.1093/mnras/staa827⟩
Mon.Not.Roy.Astron.Soc., 2020, 494 (2), pp.1956-1970. ⟨10.1093/mnras/staa827⟩
The cross-correlation of gravitational wave strain with upcoming galaxy surveys probe theories of gravity in a new way. This method enables testing the theory of gravity by combining the effects from both gravitational lensing of gravitational waves
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f70cc35457d8da05c2c9fbab2f1ad13
https://doi.org/10.1093/mnras/staa827
https://doi.org/10.1093/mnras/staa827