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GREinGC SIGNED

General Relativistic Effect in Galaxy Clustering as a Novel Probe of Inflationary Cosmology

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EC-Contrib. €

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Project "GREinGC" data sheet

The following table provides information about the project.

Coordinator
UNIVERSITAT ZURICH 

Organization address
address: RAMISTRASSE 71
city: Zürich
postcode: 8006
website: http://www.unizh.ch

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Switzerland [CH]
 Project website https://www.ics.uzh.ch/
 Total cost 1˙991˙721 €
 EC max contribution 1˙991˙721 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-CoG
 Funding Scheme ERC-COG
 Starting year 2016
 Duration (year-month-day) from 2016-03-01   to  2021-02-28

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITAT ZURICH CH (Zürich) coordinator 1˙991˙721.00

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 Project objective

Substantial advances in cosmology over the past decades have firmly established the standard model of cosmology. However, the physical nature of the early Universe and dark energy (or inflationary cosmology) remains poorly understood. To resolve these issues, a large number of galaxy surveys are planned to measure millions of galaxies in the sky, promising precision measurements of galaxy clustering with enormous statistical power. Despite these advances in observation, the standard theoretical description of galaxy clustering is based on the Newtonian description, inadequate for measuring the relativistic effects from the early Universe and the deviations of modified gravity from general relativity. In recent years, the applicant, for the first time, developed the linear-order general relativistic description of galaxy clustering and showed that the relativistic effect in galaxy clustering is already measurable at a few-sigma level in current surveys like the Sloan survey and significant detections (>10 sigma) are possible in upcoming surveys.

This research proposal will aim to use the subtle relativistic effect in galaxy clustering to develop novel probes of inflationary cosmology. In particular, the applicant will 1) formulate the higher-order relativistic description of galaxy clustering, an essential tool for computing the bispectrum, and 2) investigate the unique relativistic signatures (linear-order and higher-order) in galaxy clustering from the early Universe and dark energy to develop novel probes of isolating those signatures and to quantify their detectabilities in future galaxy surveys. Biases in cosmological parameter estimation, if the standard Newtonian description is used, will be quantified. A comprehensive understanding of inflationary cosmology will have far-reaching consequences, shedding light on new physics beyond the standard model.

 Publications

year authors and title journal last update
List of publications.
2017 Sang Gyu Biern, Jaiyul Yoo
Correlation function of the luminosity distances
published pages: 026-026, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/09/026
Journal of Cosmology and Astroparticle Physics 2017/09 2019-06-19
2016 Jaiyul Yoo, Jinn-Ouk Gong
Exact analytic solution for non-linear density fluctuation in a ΛCDM universe
published pages: 017-017, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2016/07/017
Journal of Cosmology and Astroparticle Physics 2016/07 2019-06-19
2016 Jaiyul Yoo, Fulvio Scaccabarozzi
Unified treatment of the luminosity distance in cosmology
published pages: 046-046, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2016/09/046
Journal of Cosmology and Astroparticle Physics 2016/09 2019-06-19
2017 Jaiyul Yoo, Ruth Durrer
Gauge-transformation properties of cosmological observables and its application to the light-cone average
published pages: 016-016, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/09/016
Journal of Cosmology and Astroparticle Physics 2017/09 2019-06-19
2017 Sang Gyu Biern, Jaiyul Yoo
Gauge-invariance and infrared divergences in the luminosity distance
published pages: 045-045, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/04/045
Journal of Cosmology and Astroparticle Physics 2017/04 2019-06-19
2017 Jinn-Ouk Gong, Jai-chan Hwang, Hyerim Noh, David Chan Lon Wu, Jaiyul Yoo
Exact non-linear equations for cosmological perturbations
published pages: 027-027, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/10/027
Journal of Cosmology and Astroparticle Physics 2017/10 2019-06-19
2017 Fulvio Scaccabarozzi, Jaiyul Yoo
Light-cone observables and gauge-invariance in the geodesic light-cone formalism
published pages: 007-007, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/06/007
Journal of Cosmology and Astroparticle Physics 2017/06 2019-06-19
2019 G. Fanizza, M. Gasperini, G. Marozzi, G. Veneziano
Observation angles, Fermi coordinates, and the Geodesic-Light-Cone gauge
published pages: 004-004, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/01/004
Journal of Cosmology and Astroparticle Physics 2019/01 2019-05-15
2019 Luca Amendola, Yves Dirian, Henrik Nersisyan, Sohyun Park
Observational constraints in nonlocal gravity: the Deser-Woodard case
published pages: 045-045, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/03/045
Journal of Cosmology and Astroparticle Physics 2019/03 2019-05-15
2019 Ermis Mitsou
Spin connection formulations of real Lorentzian general relativity
published pages: 45008, ISSN: 0264-9381, DOI: 10.1088/1361-6382/ab00b1
Classical and Quantum Gravity 36/4 2019-05-15
2018 Sebastian Garcia-Saenz, Ermis Mitsou, Alberto Nicolis
A multipole-expanded effective field theory for vortex ring-sound interactions
published pages: , ISSN: 1029-8479, DOI: 10.1007/jhep02(2018)022
Journal of High Energy Physics 2018/2 2019-05-15
2019 L Cosmai, G Fanizza, F Sylos Labini, L Pietronero, L Tedesco
Fractal universe and cosmic acceleration in a Lemaître–Tolman–Bondi scenario
published pages: 45007, ISSN: 0264-9381, DOI: 10.1088/1361-6382/aae8f7
Classical and Quantum Gravity 36/4 2019-05-15
2018 Fulvio Scaccabarozzi, Jaiyul Yoo, Sang Gyu Biern
Galaxy two-point correlation function in general relativity
published pages: 024-024, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/10/024
Journal of Cosmology and Astroparticle Physics 2018/10 2019-04-16
2018 Giuseppe Fanizza, Jaiyul Yoo, Sang Gyu Biern
Non-linear general relativistic effects in the observed redshift
published pages: 037-037, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/09/037
Journal of Cosmology and Astroparticle Physics 2018/09 2019-04-09
2018 Jaiyul Yoo, Nastassia Grimm, Ermis Mitsou, Adam Amara, Alexandre Refregier
Gauge-invariant formalism of cosmological weak lensing
published pages: 029-029, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/04/029
Journal of Cosmology and Astroparticle Physics 2018/04 2019-04-09
2018 Ermis Mitsou, Fulvio Scaccabarozzi, Giuseppe Fanizza
Observed angles and geodesic light-cone coordinates
published pages: 107002, ISSN: 0264-9381, DOI: 10.1088/1361-6382/aab06b
Classical and Quantum Gravity 35/10 2019-04-09
2018 Nastassia Grimm, Jaiyul Yoo
Jacobi mapping approach for a precise cosmological weak lensing formalism
published pages: 067-067, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/07/067
Journal of Cosmology and Astroparticle Physics 2018/07 2019-04-09

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