Evolution of dwarf galaxy observable parameters

Abstract

We present a semi-analytic model of isolated dwarf galaxy evolution and use it to study the build-up of observed correlations between dwarf galaxy properties. We analyse the evolution using models with averaged and individual halo mass assembly histories in order to determine the importance of stochasticity on the present-day properties of dwarf galaxies. The model has a few free parameters, but when these are calibrated using the halo mass - stellar mass and stellar mass-metallicity relations, the results agree with other observed dwarf galaxy properties remarkably well. Redshift evolution shows that even isolated galaxies change significantly over the Hubble time and that 'fossil dwarf galaxies' with properties equivalent to those of high-redshift analogues should be extremely rare, or non-existent, in the Local Universe. A break in most galaxy property correlations develops over time, at a stellar mass $M_{\ast }\simeq 10^7{M}_{\odot }$. It is caused predominantly by the ionizing background radiation and can therefore in principle be used to constrain the properties of reionization.

arXiv comment14 pages, 8 figures. Accepted for publication in MNRAS

References in corpus (103)

• Planck 2015 results. XIII. Cosmological parameters
• The chemical composition of the Sun
• The Structure of Cold Dark Matter Halos
• On the variation of the Initial Mass Function
• Cosmic Star Formation History
• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• The Origin of the Mass--Metallicity Relation: Insights from 53,000 Star-Forming Galaxies in the SDSS
• Statistical Properties of X-ray Clusters: Analytic and Numerical Comparisons
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• The Average Star Formation Histories of Galaxies in Dark Matter Halos from z=0-8
• How Massive Single Stars End their Life
• Mass and environment as drivers of galaxy evolution in SDSS and zCOSMOS and the origin of the Schechter function
• GOODS-Herschel: an infrared main sequence for star-forming galaxies
• Compact Remnant Mass Function: Dependence on the Explosion Mechanism and Metallicity
• Starburst-driven Mass Loss from Dwarf Galaxies: Efficiency and Metal Ejection
• Euclid Definition Study Report
• How supernova feedback turns dark matter cusps into cores
• The Universal Stellar Mass-Stellar Metallicity Relation for Dwarf Galaxies
• The merger rate of galaxies in the Illustris Simulation: a comparison with observations and semi-empirical models
• SPARC: Mass Models for 175 Disk Galaxies with Spitzer Photometry and Accurate Rotation Curves
• Effect of Reionization on the Structure Formation in the Universe
• The Growth of HII Regions During Reionization
• The Merger Rates and Mass Assembly Histories of Dark Matter Haloes in the Two Millennium Simulations
• Massloss of galaxies due to a UV-background
• Eight Ultra-faint Galaxy Candidates Discovered in Year Two of the Dark Energy Survey
• A primer on hierarchical galaxy formation: the semi-analytical approach
• The Star Formation Histories of Local Group Dwarf Galaxies I. Hubble Space Telescope / Wide Field Planetary Camera 2 Observations
• The Origin of the Galaxy Mass-Metallicity Relation and Implications for Galactic Outflows
• Accurate universal models for the mass accretion histories and concentrations of dark matter halos
• The properties of warm dark matter haloes
• Hydrodynamic Simulations of Galaxy Formation. II. Photoionization and the Formation of Low Mass Galaxies
• The Aquila comparison Project: The Effects of Feedback and Numerical Methods on Simulations of Galaxy Formation
• A Stellar Mass Threshold for Quenching of Field Galaxies
• The Cosmic Baryon Cycle and Galaxy Mass Assembly in the FIRE Simulations
• On Extending the Mass-Metallicity Relation of Galaxies by 2.5 Decades in Stellar Mass
• High-resolution mass models of dwarf galaxies from LITTLE THINGS
• NIHAO project I: Reproducing the inefficiency of galaxy formation across cosmic time with a large sample of cosmological hydrodynamical simulations
• Direct Oxygen Abundances for Low Luminosity LVL Galaxies
• The size - virial radius relation of galaxies
• Dwarf galaxies in voids: Suppressing star formation with photo-heating
• A Model of Supernovae Feedback in Galaxy Formation
• The Photo-Evaporation of Dwarf Galaxies During Reionization
• HeII Reionization and its Effect on the IGM
• Photoionization Feedback in Low--Mass Galaxies at High Redshift
• The coupling between the core/cusp and missing satellite problems
• A Baryonic Solution to the Missing Satellites Problem
• Formation Histories of Dwarf Galaxies in the Local Group
• Taxing the Rich: Recombinations and Bubble Growth During Reionization
• The stellar mass-halo mass relation of isolated field dwarfs: a critical test of $\Lambda$CDM at the edge of galaxy formation
• Bent by baryons: the low mass galaxy-halo relation
• Modeling the Effects of Star Formation Histories on Halpha and Ultra-Violet Fluxes in Nearby Dwarf Galaxies
• The Star Formation Main Sequence in the Hubble Space Telescope Frontier Fields
• Be it therefore resolved: Cosmological Simulations of Dwarf Galaxies with Extreme Resolution
• The Star Formation Histories of Local Group Dwarf Galaxies II. Searching For Signatures of Reionization
• Star formation, supernovae, iron, and alpha: consistent cosmic and Galactic histories
• Sweating the small stuff: simulating dwarf galaxies, ultra-faint dwarf galaxies, and their own tiny satellites
• The Star Formation Law in Molecule-Poor Galaxies
• The evolving SFR-M_star relation and sSFR since z~5 from the VUDS spectroscopic survey
• Metallicity-Dependent quenching of Star Formation at High Redshift in Small Galaxies
• The growth of dark matter halos: evidence for significant smooth accretion
• Stochastic star formation and a (nearly) uniform stellar initial mass function
• The Mass-Metallicity Relation revisited with CALIFA
• The Recent Star Formation Histories of M81 Group Dwarf Irregular Galaxies
• Organized Chaos: Scatter in the relation between stellar mass and halo mass in small galaxies
• The total satellite population of the Milky Way
• An accurate tool for the fast generation of dark matter halo catalogs
• Star formation histories of dwarf galaxies in the FIRE simulations: dependence on mass and Local Group environment
• SLUG - Stochastically Lighting Up Galaxies. II: Quantifying the Effects of Stochasticity on Star Formation Rate Indicators
• Constructing Merger Trees that Mimic N-Body Simulations
• First results from the MADCASH Survey: A Faint Dwarf Galaxy Companion to the Low Mass Spiral Galaxy NGC 2403 at 3.2 Mpc
• How to Quench a Dwarf Galaxy: The Impact of Inhomogeneous Reionization on Dwarf Galaxies and Cosmic Filaments
• Dense cloud cores revealed by CO in the low metallicity dwarf galaxy WLM
• Delving Deeper into the Tumultuous Lives of Galactic Dwarfs: Modeling Star Formation Histories
• The satellites of the Milky Way - Insights from semi-analytic modelling in a LambdaCDM cosmology
• Star Formation Feedback and Metal Enrichment History Of The Intergalactic Medium
• The Imprint of Reionization on the Star Formation Histories of Dwarf Galaxies
• A Search for Point Sources of EeV Neutrons
• Chemistry and Kinematics of the Late-Forming Dwarf Irregular Galaxies Leo A, Aquarius, and Sagittarius DIG
• The Star Forming Main Sequence of Dwarf Low Surface Brightness Galaxies
• Dancing in the Dark: Uncertainty in ultra-faint dwarf galaxy predictions from cosmological simulations
• No Assembly Required: Mergers are Mostly Irrelevant for the Growth of Low-mass Dwarf Galaxies
• Exploring the limits of AGN feedback: black holes and the star formation histories of low-mass galaxies
• Reignition of Star Formation in Dwarf Galaxies
• The imprint of cosmic reionisation on the luminosity function of galaxies
• A Characteristic Mass Scale in the Mass-Metallicity Relation of Galaxies
• Suppression of Star Formation in Low-Mass Galaxies Caused by the Reionization of their Local Neighborhood
• The edge of galaxy formation I: formation and evolution of MW-satellites analogues before accretion
• Roll of the Dice: A Stochastically Sampled IMF Alters the Stellar Content of Simulated Dwarf Galaxies
• Cosmological simulations of dwarfs: the need for ISM physics beyond SN feedback alone
• Local starburst galaxies and their descendants
• SYGMA: Stellar Yields for Galactic Modeling Applications
• Numerical simulations of dwarf galaxy merger trees
• Under the sword of Damocles: plausible regeneration of dark matter cusps at the smallest galactic scales
• A MegaCam Survey of Outer Halo Satellites. I. Description of the Survey
• On the early evolution of Local Group dwarf galaxy types: star formation and supernova feedback
• Effects of Star Formation Stochasticity on the Ly-alpha & Lyman Continuum Emission from Dwarf Galaxies during Reionization
• Reconstructing the Thomson Optical Depth due to Patchy Reionization with 21-cm Fluctuation Maps
• Reignited star formation in dwarf galaxies quenched during reionization
• Formation of Andromeda II via a gas-rich major merger and an interaction with M31
• AGN must be very efficient at powering outflows
• The low mass end of the neutral gas mass and velocity width functions of galaxies in $\Lambda$CDM
• Denuded Dwarfs Demystified: Gas Loss from dSph Progenitors and Implications for the Minimum Mass of Galaxies
• Disk Galaxy Models Driven by Stochastic Self-Propagating Star Formation

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