Strong stellar-driven outflows shape the evolution of galaxies at cosmic dawn

Abstract

We study galaxy mass assembly and cosmic star formation rate (SFR) at high-redshift (z$>$4), by comparing data from multiwavelength surveys with predictions from the GAlaxy Evolution and Assembly (GAEA) model. GAEA implements a stellar feedback scheme partially based on cosmological hydrodynamical simulations, that features strong stellar driven outflows and mass-dependent timescale for the re-accretion of ejected gas. In previous work, we have shown that this scheme is able to correctly reproduce the evolution of the galaxy stellar mass function (GSMF) up to $z\sim 3$. We contrast model predictions with both rest-frame Ultra-Violet (UV) and optical luminosity functions (LF), which are mostly sensible to the SFR and stellar mass, respectively. We show that GAEA is able to reproduce the shape and redshift evolution of both sets of LFs. We study the impact of dust on the predicted LFs and we find that the required level of dust attenuation is in qualitative agreement with recent estimates based on the UV continuum slope. The consistency between data and model predictions holds for the redshift evolution of the physical quantities well beyond the redshift range considered for the calibration of the original model. In particular, we show that GAEA is able to recover the evolution of the GSMF up to z$\sim$7 and the cosmic SFR density up to z$\sim$10.

6 pages, 2 figures, accepted on ApJ Letters

References in corpus (7)

• The hierarchical formation of the brightest cluster galaxies
• UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
• The galaxy stellar mass function at 3.5<z<7.5 in the CANDELS/UDS, GOODS-South, and HUDF fields
• The Dependence of Galaxy Formation on Cosmological Parameters: Can we distinguish the WMAP1 and WMAP3 Parameter Sets?
• Elemental Abundances in Milky Way-like Galaxies from a Hierarchical Galaxy Formation Model
• A physical model for the evolving UV luminosity function of high redshift galaxies and their contribution to the cosmic reionization
• A parametric study of possible solutions to the high-redshift overproduction of stars in modeled dwarf galaxies

Cited by in corpus (24)

• Reionization in Technicolor
• The influence of environment on satellite galaxies in the GAEA semi-analytic model
• The Rise of Active Galactic Nuclei in the GAlaxy Evolution and Assembly semi-analytic model
• The VANDELS survey: the relation between UV continuum slope and stellar metallicity in star-forming galaxies at z~3
• Tracing the Quenching Journey across Cosmic Time
• Nature versus nurture: what regulates star formation in satellite galaxies?
• Structural and Dynamical Properties of Galaxies in a Hierarchical Universe: Sizes and Specific Angular Momenta
• Quiescent galaxies at $z\gtrsim 2.5$: observations vs. models
• Gas accretion regulates the scatter of the mass-metallicity relation
• The HI Velocity Function: a test of cosmology or baryon physics?
• The evolution of the mass-metallicity relations from the VANDELS survey and the GAEA Semi-Analytic model
• Faint LAEs near z>4.7 CIV absorbers revealed by MUSE
• The Evolution of Sizes and Specific Angular Momenta in Hierarchical Models of Galaxy Formation and Evolution
• Properties of the interstellar medium in star-forming galaxies at redshifts 2 < z < 5 from the VANDELS survey
• The star formation history and the nature of the mass-metallicity relation of passive galaxies at 1.0<z<1.4 from VANDELS
• Tracing the evolution of dust obscured star-formation and accretion back to the reionisation epoch with SPICA
• An Empirical Determination of the Dependence of the Circumgalactic Mass Cooling Rate and Feedback Mass Loading Factor on Galactic Stellar Mass
• HSC-CLAUDS survey: The star formation rate functions since z ~ 2 and comparison with hydrodynamical simulations
• Variation of the stellar initial mass function in semi-analytical models III: testing the cosmic ray regulated integrated galaxy-wide initial mass function
• Euclid preparation. Optical emission-line predictions of intermediate-z galaxy populations in GAEA for the Euclid Deep and Wide Surveys
• Galaxy Assembly and Evolution in the P-Millennium simulation: galaxy clustering
• Merging history of massive galaxies at 3<z<6
• Variations of the stellar Initial Mass Function in Semi-Analytic Models: implications for the mass assembly of galaxies in the GAEA model
• Euclid preparation. 3D reconstruction of the cosmic web with simulated Euclid Deep spectroscopic samples