GALICS III: Predicted properties for Lyman Break Galaxies at redshift 3

Abstract

This paper illustrates how mock observational samples of high-redshift galaxies with sophisticated selection criteria can be extracted from the predictions of GALICS, a hybrid model of hierarchical galaxy formation that couples the outputs of large cosmological simulations and semi-analytic recipes to describe dark matter collapse and the physics of baryons respectively. As an example of this method, we focus on the properties of Lyman Break Galaxies at redshift 3. With the MOMAF software package described in a companion paper, we generate a mock observational sample with selection criteria as similar as possible to those implied in the actual observations of z = 3 LBGs by Steidel et al.(1995). Our model predictions are in good agreement with the observed number density and 2D correlation function. We investigate the optical/IR luminosity budget as well as several other physical properties of LBGs and find them to be in general agreement with observed values. Looking into the future of these LBGs we predict that 75% of them end up as massive ellipticals today, even though only 35% of all our local ellipticals are predicted to have a LBG progenitor. In spite of some shortcomings, this new 'mock observation' method clearly represents a necessary first step toward a more accurate comparison between hierarchical models of galaxy formation and real observational surveys.

19 pages, 15 figures, submitted to MNRAS. Full resolution figures at http://galics.iap.fr/

References in corpus (26)

• Star Formation in Galaxies Along the Hubble Sequence
• High Redshift Galaxies in the Hubble Deep Field. Color Selection and Star Formation History to z=4
• Lyman Break Galaxies at z>4 and the Evolution of the UV Luminosity Density at High Redshift
• Using the Evolution of Clusters to Constrain Omega
• The Rest Frame Optical Spectra of Lyman Break Galaxies: Star Formation, Extinction, Abundances, and Kinematics
• Lyman Break Galaxies at Redshift z~3: Survey Description and Full Data Set
• The Nature of High-Redshift Galaxies
• The Stellar Populations and Evolution of Lyman Break Galaxies
• The Rest-Frame Optical Properties of z~3 Galaxies
• The Epoch of Galaxy Formation
• Multi-wavelength Observations of Dusty Star Formation at Low and High Redshift
• GALICS I: A hybrid N-body semi-analytic model of hierarchical galaxy formation
• Measuring the Redshift Evolution of Clustering: the Hubble Deep Field South
• Semi-analytic modelling of galaxy evolution in the IR/submm range
• The Angular Clustering of Lyman-Break Galaxies at Redshift z=3
• Hubble Space Telescope Imaging of Star-Forming Galaxies at Redshifts z>3
• A Counts-in-Cells Analysis of Lyman-break Galaxies at z~3
• Lyman Limit Imaging of High Redshift Galaxies. III. New Observations of 4 QSO Fields
• Clustering Segregation With UV Luminosity in Lyman-Break Galaxies at z~3 and Its Implications
• A search for the submillimetre counterparts to Lyman break galaxies
• The Clustering Properties of Lyman-Break Galaxies at Redshift z~3
• High-Redshift Galaxies in Cold Dark Matter Models
• The Lyman Break Galaxies: their Progenitors and Descendants
• Dust Absorption and the Cosmic UV Flux Density
• Collision-induced galaxy formation: semi-analytical model and multi-wavelength predictions
• The z ~ 4 Lyman Break Galaxies: Colors and Theoretical Predictions

Cited by in corpus (34)

• Modelling the Galaxy Bimodality: Shutdown Above a Critical Halo Mass
• Galaxy Formation Theory
• Galaxy Properties from the Ultra-violet to the Far-Infrared: Lambda-CDM models confront observations
• The impact of baryons on the matter power spectrum from the Horizon-AGN cosmological hydrodynamical simulation
• MoMaF : The Mock Map Facility
• Relative merits of different types of rest-frame optical observations to constrain galaxy physical parameters
• The Physical and Photometric Properties of High-Redshift Galaxies in Cosmological Hydrodynamic Simulations
• Clustering of Lyman Break Galaxies at z=4 and 5 in The Subaru Deep Field: Luminosity Dependence of The Correlation Function Slope
• Galaxy Formation Spanning Cosmic History
• Accretion, feedback and galaxy bimodality: a comparison of the GalICS semi-analytic model and cosmological SPH simulations
• Dust properties of Lyman break galaxies at $z\sim 3$
• The GalMer database: Galaxy Mergers in the Virtual Observatory
• The Varied Fates of z~2 Star-forming Galaxies
• Faint Lyman-Break galaxies as a crucial test for galaxy formation models
• GALICS -- VI. Modelling Hierarchical Galaxy Formation in Clusters
• Evaluating and Improving Semi-analytic modelling of Dust in Galaxies based on Radiative Transfer Calculations
• The Millennium Run Observatory: First Light
• Empirical constraints on the formation of early-type galaxies
• The Theoretical Astrophysical Observatory: Cloud-Based Mock Galaxy Catalogues
• Modelling high redshift Lyman-alpha Emitters
• A direct calibration of the IRX-β relation in Lyman-break Galaxies at z=3-5
• Lyman Break Galaxies at z = 4 - 6 in cosmological SPH Simulations
• High Redshift Galaxy Populations and their Descendants
• The VIMOS VLT Deep Survey: Computing the two point correlation statistics and associated uncertainties
• Clustering Properties of restframe UV selected galaxies II: Migration of Star Formation sites with cosmic time from GALEX and CFHTLS
• Stellar populations in the CFHTLS. I. New constraints on the IMF at low mass
• GalICS V : Low and high order clustering in mock SDSS's
• Lyman-α Emitters in the context of hierarchical galaxy formation: predictions for VLT/MUSE surveys
• Interactive 3D Visualization for Theoretical Virtual Observatories
• Modelling the spectral energy distribution of galaxies: introducing the artificial neural network
• LeMoMaF: Lensed Mock Map Facility
• Dust Distribution during Reionization
• Mass limits for heavy neutrinos
• Fast radiative transfer of dust reprocessing in semi-analytic models with artificial neural networks