Constraints on Dynamical Dark Energy Models from the Abundance of Massive Galaxies at High Redshifts

Autor: Emanuele Giallongo, David Elbaz, Adriano Fontana, Paola Santini, Andrea Grazian, A. Lamastra, N. Menci, E. Merlin, Norma G. Sanchez, F. Fortuni, Marco Castellano, Tao Wang
Přispěvatelé: Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), ITA, Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
010504 meteorology & atmospheric sciences
Stellar mass
redshift: dependence
pole
FOS: Physical sciences
General Relativity and Quantum Cosmology (gr-qc)
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
Parameter space
galaxy formation
01 natural sciences
General Relativity and Quantum Cosmology
cosmology
cosmological parameters
galaxy formation
High Energy Physics - Phenomenology (hep-ph)
0103 physical sciences
Galaxy formation and evolution
cosmological parameters
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
0105 earth and related environmental sciences
[PHYS]Physics [physics]
Physics
gas: mass
Equation of state (cosmology)
redshift: high
parametrization
Astronomy and Astrophysics
Astrophysics - Astrophysics of Galaxies
Redshift
Galaxy
High Energy Physics - Phenomenology
South Pole Telescope
dark energy: density
Space and Planetary Science
Astrophysics of Galaxies (astro-ph.GA)
Dark energy
time dependence
galaxy
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
cosmology
Astrophysics - Cosmology and Nongalactic Astrophysics
dark energy: equation of state
Zdroj: Astrophys.J.
Astrophys.J., 2020, 900 (2), pp.108. ⟨10.3847/1538-4357/aba9d2⟩
The Astrophysical Journal
The Astrophysical Journal, 2020, 900 (2), pp.108. ⟨10.3847/1538-4357/aba9d2⟩
ISSN: 0004-637X
1538-4357
DOI: 10.13140/rg.2.2.36461.74726
Popis: We compare the maximal abundance of massive systems predicted in different dynamical dark energy (DDE) models at high redshifts z = 4-7 with the measured abundance of the most massive galaxies observed to be already in place at such redshifts. The aim is to derive constraints for the evolution of the dark energy equation of state parameter w which are complementary to existing probes. We adopt the standard parametrization for the DDE evolution in terms of the local value w_0 and of the look-back time derivative w_a of the equation of state. We derive constraints on combinations (w_0, w_a) in the different DDE models by using three different, independent probes: (i) the observed stellar mass function of massive objects at z = 6 derived from the CANDELS survey; (ii) the estimated volume density of massive halos derived from the observation of massive, star-forming galaxies detected in the submillimeter range at z = 4; (iii) The rareness of he most massive system (estimated gas mass exceeding 3 10^11 M_sun) observed to be in place at z = 7, a far-infrared-luminous object recently detected in the South Pole Telescope (SPT) survey. Finally, we show that the combination of our results from the three above probes excludes a sizable fraction of the DDE parameter space w_a > -3/4 - (w_0 + 3/2) presently allowed (or even favored) by existing probes.
18 pages, accepted for publication in The Astrophysical journal. Updated version with additional references
Databáze: OpenAIRE
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