Journal article
Growth-rate measurement with type-Ia supernovae using ZTF survey simulations
Astronomy and astrophysics (Berlin), v 674, pA197
01 Jun 2023
Abstract
Measurements of the growth rate of structures at z < 0.1 with peculiar velocity surveys have the potential of testing the validity of general relativity on cosmic scales. In this work, we present growth-rate measurements from realistic simulated sets of type-Ia supernovae (SNe Ia) from the Zwicky Transient Facility (ZTF). We describe our simulation methodology, the light-curve fitting, and peculiar velocity estimation. Using the maximum likelihood method, we derived constraints on fa -8 using only ZTF SN Ia peculiar velocities. We carefully tested the method and we quantified biases due to selection effects (photometric detection, spectroscopic follow-up for typing) on several independent realizations. We simulated the equivalent of 6 years of ZTF data, and considering an unbiased spectroscopically typed sample at z < 0.06, we obtained unbiased estimates of fa -8 with an average uncertainty of 19% precision. We also investigated the information gain in applying bias correction methods. Our results validate our framework, which can be used on real ZTF data.
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Details
- Title
- Growth-rate measurement with type-Ia supernovae using ZTF survey simulations
- Creators
- Bastien Carreres - Aix-Marseille UniversitéJulian E. Bautista - Aix-Marseille UniversitéFabrice Feinstein - Aix-Marseille UniversitéDominique Fouchez - Aix-Marseille UniversitéBenjamin Racine - Aix-Marseille UniversitéMathew Smith - Université Claude Bernard Lyon 1Mellissa Amenouche - Université Clermont AuvergneMarie Aubert - Université Clermont AuvergneSuhail Dhawan - University of CambridgeMadeleine Ginolin - Université Claude Bernard Lyon 1Ariel Goobar - Stockholm UniversityPhilippe Gris - Université Clermont AuvergneLeander Lacroix - Laboratoire de Physique Nucléaire et de Hautes ÉnergiesEric Nuss - Laboratoire Univers et Particules de MontpellierNicolas Regnault - Laboratoire de Physique Nucléaire et de Hautes ÉnergiesMickael Rigault - Université Claude Bernard Lyon 1Estelle Robert - Université Claude Bernard Lyon 1Philippe Rosnet - Université Clermont AuvergneKelian Sommer - Laboratoire Univers et Particules de MontpellierRichard Dekany - California Institute of TechnologySteven L. Groom - Infrared Processing and Analysis CenterNiharika Sravan - California Institute of TechnologyFrank J. Masci - Infrared Processing and Analysis CenterJosiah Purdum - California Institute of Technology
- Publication Details
- Astronomy and astrophysics (Berlin), v 674, pA197
- Publisher
- Edp Sciences S A
- Number of pages
- 18
- Grant note
- AMX-20-CE-02-DARKUNI / Excellence Initiative of Aix-Marseille University-A*MIDEX AST-1440341; AST-2034437 / National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:001017830100003
- Scopus ID
- 2-s2.0-85163475188
- Other Identifier
- 991021877483804721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics