Galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation

Nora Elisa Chisari; Nikolaos Koukoufilippas; Abhinav Jindal; Sebastien Peirani; Ricarda S. Beckmann; Sandrine Codis; Julien Devriendt; Lance Miller; Yohan Dubois; Clotilde Laigle; Adrianne Slyz; Christophe Pichon

doi:10.48550/arXiv.1702.03913

Galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation

Nora Elisa Chisari, Nikolaos Koukoufilippas, Abhinav Jindal, Sebastien Peirani, Ricarda S. Beckmann, Sandrine Codis, Julien Devriendt, Lance Miller, Yohan Dubois, Clotilde Laigle, Adrianne Slyz, Christophe Pichon

Research output: Working paper › Preprint › Academic

Abstract

Intrinsic alignments of galaxies are a significant astrophysical systematic affecting cosmological constraints from weak gravitational lensing. Obtaining numerical predictions from hydrodynamical simulations of expected survey volumes is expensive, and a cheaper alternative relies on populating large dark matter-only simulations with accurate models of alignments calibrated on smaller hydrodynamical runs. This requires connecting the shapes and orientations of galaxies to those of dark matter haloes and to the large-scale structure. In this paper, we characterise galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation. We compare the shapes and orientations of galaxies in the redshift range $0

Original language	English
Publisher	arXiv
Pages	1-20
DOIs	https://doi.org/10.48550/arXiv.1702.03913
Publication status	Published - 13 Feb 2017

Bibliographical note

20 pages, 22 figures, matches accepted version

Keywords

astro-ph.CO

Access to Document

10.48550/arXiv.1702.03913

1702.03913v2Submitted manuscript, 652 KB

https://arxiv.org/abs/1702.03913

Cite this

@techreport{231cfc4b1c2a4ec39feeb27d214a4b0f,

title = "Galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation",

abstract = " Intrinsic alignments of galaxies are a significant astrophysical systematic affecting cosmological constraints from weak gravitational lensing. Obtaining numerical predictions from hydrodynamical simulations of expected survey volumes is expensive, and a cheaper alternative relies on populating large dark matter-only simulations with accurate models of alignments calibrated on smaller hydrodynamical runs. This requires connecting the shapes and orientations of galaxies to those of dark matter haloes and to the large-scale structure. In this paper, we characterise galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation. We compare the shapes and orientations of galaxies in the redshift range $0",

keywords = "astro-ph.CO",

author = "Chisari, {Nora Elisa} and Nikolaos Koukoufilippas and Abhinav Jindal and Sebastien Peirani and Beckmann, {Ricarda S.} and Sandrine Codis and Julien Devriendt and Lance Miller and Yohan Dubois and Clotilde Laigle and Adrianne Slyz and Christophe Pichon",

note = "20 pages, 22 figures, matches accepted version",

year = "2017",

month = feb,

day = "13",

doi = "10.48550/arXiv.1702.03913",

language = "English",

pages = "1--20",

publisher = "arXiv",

type = "WorkingPaper",

institution = "arXiv",

}

TY - UNPB

T1 - Galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation

AU - Chisari, Nora Elisa

AU - Koukoufilippas, Nikolaos

AU - Jindal, Abhinav

AU - Peirani, Sebastien

AU - Beckmann, Ricarda S.

AU - Codis, Sandrine

AU - Devriendt, Julien

AU - Miller, Lance

AU - Dubois, Yohan

AU - Laigle, Clotilde

AU - Slyz, Adrianne

AU - Pichon, Christophe

N1 - 20 pages, 22 figures, matches accepted version

PY - 2017/2/13

Y1 - 2017/2/13

N2 - Intrinsic alignments of galaxies are a significant astrophysical systematic affecting cosmological constraints from weak gravitational lensing. Obtaining numerical predictions from hydrodynamical simulations of expected survey volumes is expensive, and a cheaper alternative relies on populating large dark matter-only simulations with accurate models of alignments calibrated on smaller hydrodynamical runs. This requires connecting the shapes and orientations of galaxies to those of dark matter haloes and to the large-scale structure. In this paper, we characterise galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation. We compare the shapes and orientations of galaxies in the redshift range $0

AB - Intrinsic alignments of galaxies are a significant astrophysical systematic affecting cosmological constraints from weak gravitational lensing. Obtaining numerical predictions from hydrodynamical simulations of expected survey volumes is expensive, and a cheaper alternative relies on populating large dark matter-only simulations with accurate models of alignments calibrated on smaller hydrodynamical runs. This requires connecting the shapes and orientations of galaxies to those of dark matter haloes and to the large-scale structure. In this paper, we characterise galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation. We compare the shapes and orientations of galaxies in the redshift range $0

KW - astro-ph.CO

U2 - 10.48550/arXiv.1702.03913

DO - 10.48550/arXiv.1702.03913

M3 - Preprint

SP - 1

EP - 20

BT - Galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation

PB - arXiv

ER -

Galaxy-halo alignments in the Horizon-AGN cosmological hydrodynamical simulation

Abstract

Bibliographical note

Keywords

Access to Document

Fingerprint

Cite this