Introducing the FirstLight project: UV luminosity function and scaling relations of primeval galaxies

Abstract

We introduce the FirstLight project that aims to generate a large database of high-resolution, zoom-in simulations of galaxy formation around the epoch of reionisation ($z\ge 6$). The first results of this program agree well with recent observational constraints at z=6-8, including the UV luminosity function and galaxy stellar mass function, as well as the scaling relationships between halo mass, stellar mass, and UV magnitude. The UV luminosity function starts to flatten below MUV>-14 due to stellar feedback in halos with maximum circular velocities of V=30-40 km/s. The power-law slope of the luminosity function evolves rapidly with redshift, reaching a value of alpha=-2.5 at z=10. On the other hand, the galaxy stellar mass function evolves slowly with time between z=8-10, in particular at the low-mass end.

8 pages, 9 figures, accepted at MNRAS

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Cited by in corpus (61)

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• Introducing the THESAN project: radiation-magnetohydrodynamic simulations of the epoch of reionization
• Simulating galaxies in the reionization era with FIRE-2: galaxy scaling relations, stellar mass functions, and luminosity functions
• The JWST Extragalactic Mock Catalog: Modeling galaxy populations from the UV through the near-IR over thirteen billion years of cosmic history
• High redshift JWST predictions from IllustrisTNG: Dust modelling and galaxy luminosity functions
• Public data release of the FIRE-2 cosmological zoom-in simulations of galaxy formation
• No missing photons for reionization: moderate ionizing photon escape fractions from the FIRE-2 simulations
• Dusty galaxies in the Epoch of Reionization: simulations
• The impact of chemistry on the structure of high-z galaxies
• Stochastic modelling of star-formation histories II: star-formation variability from molecular clouds and gas inflow
• Semi-analytic forecasts for JWST -- II. physical properties and scaling relations for galaxies at z = 4-10
• z~2-9 Galaxies Magnified by the Hubble Frontier Field Clusters II: Luminosity Functions and Constraints on a Faint-End Turnover
• A survey of high-$z$ galaxies: SERRA simulations
• First Light And Reionisation Epoch Simulations (FLARES) II: The Photometric Properties of High-Redshift Galaxies
• Warm dust in high-z galaxies: origin and implications
• Mini-quenching of $z=4-8$ galaxies by bursty star formation
• Results from EDGES High-Band: III. New Constraints on Parameters of the Early Universe
• Breaking degeneracies in the first galaxies with clustering
• Dynamical characterization of galaxies up to $z\sim 7$
• High redshift JWST predictions from IllustrisTNG: II. Galaxy line and continuum spectral indices and dust attenuation curves
• Semi-analytic forecasts for JWST -- III. Intrinsic production efficiency of Lyman-continuum radiation
• The assembly of dusty galaxies at $z\ge 4$: the build-up of stellar mass and its scaling relations with hints from early JWST data
• Reionization and the ISM/Stellar Origins with JWST and ALMA (RIOJA): The core of the highest redshift galaxy overdensity at $z=7.88$ confirmed by NIRSpec/JWST
• On the faint-end of the galaxy luminosity function in the Epoch of Reionization: updated constraints from the HST Frontier Fields
• Weak Evolution of the Mass-metallicity Relation at Cosmic Dawn in the FirstLight Simulations
• FirstLight III: Rest-frame UV-optical spectral energy distributions of simulated galaxies at cosmic dawn
• Unveiling the contribution of Pop III stars in primeval galaxies at redshift $\ge 6$
• Redshift-dependent galaxy formation efficiency at $z=5-13$ in the FirstLight simulations
• Zooming in on supermassive black holes: how resolving their gas cloud host renders their accretion episodic
• Constraints on Primordial Power Spectrum from Galaxy Luminosity Functions
• Optimal neighbourhood to nurture giants: a fundamental link between star forming galaxies and direct collapse black holes
• Balmer breaks in simulated galaxies at z>6
• The mass-metallicity relation as a ruler for galaxy evolution: insights from the James Webb Space Telescope
• The AGORA High-resolution Galaxy Simulations Comparison Project. VI. Similarities and Differences in the Circumgalactic Medium
• Effects of feedback on galaxies in the VELA simulations: elongation, clumps and compaction
• JWST PRIMER: A lack of outshining in four normal z =4-6 galaxies from the ALMA-CRISTAL Survey
• Tracing the galaxy-halo connection with galaxy clustering in COSMOS-Web from z = 0.1 to z ~ 12
• Dust attenuation in galaxies at cosmic dawn from the FirstLight simulations
• Witnessing an extreme, highly efficient galaxy formation mode with resolved Ly$\alpha$ and LyC emission
• Modelling the luminosity function of long Gamma Ray Bursts using SWIFT and FERMI
• Investigating the physical properties of galaxies in the Epoch of Reionization with MIRI/JWST spectroscopy
• FirstLight IV: Diversity in sub-L${}_{\ast }$ galaxies at cosmic dawn
• SIEGE IV: compact star clusters in cosmological simulations with high star formation efficiency and sub-parsec resolution
• A Cosmological Solution to the Impossibly Early Galaxy Problem
• Cosmic Sands: The Origin of Dusty, Star-forming Galaxies in the Epoch of Reionization
• Investigating the ultraviolet and infrared radiation through the turbulent life of molecular clouds
• On the Origin of the High Star-Formation Efficiency in Massive Galaxies at Cosmic Dawn
• The THESAN-ZOOM project: Star-formation efficiencies in high-redshift galaxies
• An efficient hybrid method to produce high resolution large volume dark matter simulations for semi-analytic models of reionisation
• The THESAN-ZOOM project: Star formation efficiency from giant molecular clouds to galactic scale in high-redshift starbursts
• Dynamical Properties of Molecular-forming Gas Clumps in Galaxies at the Epoch of Reionization
• The Effect of Warm Dark Matter on Early Star Formation Histories of Massive Galaxies: Predictions from the CROC Simulations
• The dark side of early galaxies: $\text{geko}$ uncovers dark-matter fractions at $z\sim 4-6$
• Cloudy-Maraston: Integrating nebular continuum and line emission with the Maraston stellar population synthesis models
• Spatially resolved H$\alpha$ emission in B14-65666: compact starbursts, ionizing efficiency and gas kinematics in an advanced merger at the Epoch of Reionization
• Clues to the nature of dark matter from first galaxies
• Dust-UV offsets in high-redshift galaxies in the Cosmic Dawn III simulation
• Simulations at the Dwarf Scale: From Violent Dwarfs at Cosmic Dawn and Cosmic Noon to Quiet Discs today
• The Baryon Budget of Galaxies across the First Billion Years