Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Davide Gualdi"'
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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We present the GEOMAX algorithm and its python implementation for a two-step compression of bispectrum measurements. The first step groups bispectra by the geometric properties of their arguments; the second step then maximizes the Fisher information
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
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We perform for the first time a joint analysis of the monopole and quadrupoles for power spectrum, bispectrum and integrated trispectrum (i-trispectrum) from the redshift space matter field in N-body simulations. With a full Markov Chain Monte Carlo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d9b3f12fc071dc63d20c85a0eb8d505
http://arxiv.org/abs/2104.03976
http://arxiv.org/abs/2104.03976
Publikováno v:
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2019, 484 (1), pp.L29-L34. ⟨10.1093/mnrasl/sly242⟩
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 484 (1), pp.L29-L34. ⟨10.1093/mnrasl/sly242⟩
Mon.Not.Roy.Astron.Soc., 2019, 484 (1), pp.L29-L34. ⟨10.1093/mnrasl/sly242⟩
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 484 (1), pp.L29-L34. ⟨10.1093/mnrasl/sly242⟩
We present a novel method to compress galaxy clustering three-point statistics and apply it to redshift space galaxy bispectrum monopole measurements from BOSS DR12 CMASS data considering a $k$-space range of $0.03-0.12\,h/\mathrm{Mpc}$. The method c
Autor:
Licia Verde, Davide Gualdi
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
Journal of Cosmology and Astroparticle Physics
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Journal of Cosmology and Astroparticle Physics
arXiv:2003.12075v2
We forecast the benefits induced by adding the bispectrum anisotropic signal to the standard, two- and three-point, clustering statistics analysis. In particular, we forecast cosmological parameter constraints including the bi
We forecast the benefits induced by adding the bispectrum anisotropic signal to the standard, two- and three-point, clustering statistics analysis. In particular, we forecast cosmological parameter constraints including the bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f43ef60c2b96092664b6fbdca19a3c4f
Autor:
L. Whiteway, Ofer Lahav, Elena Massara, Krishna Naidoo, Andreu Font-Ribera, Davide Gualdi, Matteo Viel, Héctor Gil-Marín
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Digital.CSIC. Repositorio Institucional del CSIC
instname
Digital.CSIC. Repositorio Institucional del CSIC
instname
Cosmological studies of large-scale structure have relied on two-point statistics, not fully exploiting the rich structure of the cosmic web. In this paper we show how to capture some of this cosmic web information by using the minimum spanning tree
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 476:4045-4070
We explore two methods of compressing the redshift space galaxy power spectrum and bispectrum with respect to a chosen set of cosmological parameters. Both methods involve reducing the dimension of the original data-vector ( e.g. 1000 elements ) to t
Autor:
Héctor Gil-Marín, Ofer Lahav, Benjamin Joachimi, Robert L. Schuhmann, Marc Manera, Davide Gualdi
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, 2019, 484 (3), pp.3713-3730. ⟨10.1093/mnras/stz051⟩
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2019, 484 (3), pp.3713-3730. ⟨10.1093/mnras/stz051⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 484 (3), pp.3713-3730. ⟨10.1093/mnras/stz051⟩
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2019, 484 (3), pp.3713-3730. ⟨10.1093/mnras/stz051⟩
We apply two compression methods to the galaxy power spectrum monopole/quadrupole and bispectrum monopole measurements from the BOSS DR12 CMASS sample. Both methods reduce the dimension of the original data-vector to the number of cosmological parame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6250c5053569444a41a48d72024376b4
https://hal.archives-ouvertes.fr/hal-01823298
https://hal.archives-ouvertes.fr/hal-01823298