Hidden Figures in the Sky: Evolution of low-surface brightness galaxies from a hydro-dynamical perspective

Abstract

Low-surface brightness galaxies (LSBGs) are defined as galaxies with central surface brightness levels fainter than the night sky, making them challenging to observe. A key open question is whether their faint appearance arises from intrinsic properties or stochastic events in their formation histories. We aim to trace the formation histories of LSBGs to assess whether their evolutionary paths differ from those of high-surface brightness galaxies (HSBGs), and to identify the key physical drivers behind these differences. We present a fast and efficient method to estimate stellar surface brightness densities in hydro-dynamical simulations and a statistically robust exploration of over 150 properties in the reference run \textsc{Ref-L0100N1504} of the \texttt{EAGLE} simulation. To minimise biases, we carefully match the stellar and halo mass distributions of the selected LSB and HSB samples. At $z=0$, LSBGs are typically extended, rotation-supported systems with lower stellar densities, older stellar populations, reduced star formation activity, and higher specific stellar angular momenta $j_{\ast }$ than their HSBG counterparts. They also exhibit larger radii of maximum circular velocity ($R_{\mathrm{Vmax}}$). We identify key transition redshifts that mark the divergence of LSBG and HSBG properties: $j_{\ast }$ diverges at $z\sim 5-7$ and $R_{\mathrm{Vmax}}$ at $z\sim 2-3$. Star formation activity and large-scale environment seem to play only a minimal role in the development of LSB features. LSBGs follow mass-dependent evolutionary pathways, where early rapid formation and later slowdowns, combined with their distinct structural properties, influence their response to external factors like mergers and gas accretion. Their LSB nature emerges from intrinsic dynamical and structural factors rather than environmental influences, with angular momentum as a key driver of divergence at high redshifts.

18 pages, submitted to A&A

References in corpus (99)

• A Universal Density Profile from Hierarchical Clustering
• Galactic Stellar and Substellar Initial Mass Function
• Planck 2013 results. XVI. Cosmological parameters
• The cosmological simulation code GADGET-2
• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• Populating a cluster of galaxies - I. Results at z=0
• The EAGLE simulations of galaxy formation: calibration of subgrid physics and model variations
• The SAURON project - IV. The mass-to-light ratio, the virial mass estimator and the fundamental plane of elliptical and lenticular galaxies
• Substructures in hydrodynamical cluster simulations
• Cold dark matter haloes in the Planck era: evolution of structural parameters for Einasto and NFW profiles
• Halos and galaxies in the standard cosmological model: results from the Bolshoi simulation
• The effect of photo-ionization on the cooling rates of enriched, astrophysical plasmas
• Dancing in the dark: galactic properties trace spin swings along the cosmic web
• Cosmological simulations of the growth of supermassive black holes and feedback from active galactic nuclei: method and tests
• The Connection between Galaxies and their Dark Matter Halos
• The SAURON project -- IX. A kinematic classification for early-type galaxies
• The ATLAS3D project - III. A census of the stellar angular momentum within the effective radius of early-type galaxies: unveiling the distribution of Fast and Slow Rotators
• Chemical enrichment in cosmological, smoothed particle hydrodynamics simulations
• On the relation between the Schmidt and Kennicutt-Schmidt star formation laws and its implications for numerical simulations
• The SAURON project -- X. The orbital anisotropy of elliptical and lenticular galaxies: revisiting the (V/sigma,epsilon) diagram with integral-field stellar kinematics
• Formation and evolution of galaxy dark matter halos and their substructure
• The EAGLE simulations of galaxy formation: public release of halo and galaxy catalogues
• The dark and baryonic matter content of low surface brightness disk galaxies
• NIHAO project I: Reproducing the inefficiency of galaxy formation across cosmic time with a large sample of cosmological hydrodynamical simulations
• Galaxies in LCDM with Halo Abundance Matching: luminosity-velocity relation, baryonic mass-velocity relation, velocity function and clustering
• The impact of angular momentum on black hole accretion rates in simulations of galaxy formation
• Colours and luminosities of z=0.1 simulated galaxies in the EAGLE simulations
• High-resolution rotation curves of low surface brightness galaxies: Data
• Optical colours and spectral indices of $z=0.1$ EAGLE galaxies with 3D dust radiative transfer code SKIRT
• Ejective and preventative: the IllustrisTNG black hole feedback and its effects on the thermodynamics of the gas within and around galaxies
• A chronicle of galaxy mass assembly in the EAGLE simulation
• N-body Dark Matter Haloes with simple Hierarchical Histories
• The Formation of Ultra Diffuse Galaxies in Cored Dark Matter Halos Through Tidal Stripping and Heating
• The Number Density of Low Surface Brightness Galaxies with 23<mu_0<25 V-mag/sqr-arcsecond
• Chemical signatures of formation processes in the stellar populations of simulated galaxies
• Supermassive black holes in cosmological simulations I: M_BH-M_star relation and black hole mass function
• Galaxy Formation and Evolution: Low Surface Brightness Galaxies
• Hydrodynamical simulations of the galaxy population: enduring successes and outstanding challenges
• The formation and evolution of low-surface-brightness galaxies
• Spatial and Dynamical Properties of Voids in a LCDM Universe
• The Formation of Ultra-Diffuse Galaxies in the RomulusC Galaxy Cluster Simulation
• Shadows in the Dark: Low-Surface-Brightness Galaxies Discovered in the Dark Energy Survey
• The Formation of Isolated Ultra-Diffuse Galaxies in Romulus25
• Gas Mass Fractions and the Evolution of LSB Dwarf Galaxies
• A physically motivated definition for the size of galaxies in an era of ultra-deep imaging
• The connection between mass, environment and slow rotation in simulated galaxies
• Spatial Distribution of Low Surface Brightness Galaxies
• The AGN and Gas Disk in the Low Surface Brightness Galaxy PGC045080
• Oxygen Abundances and Chemical Evolution in Low Surface Brightness Galaxies
• The Ccontribution of normal, dim and dwarf galaxies to the local luminosity density
• Quiescent Ultra-diffuse galaxies in the field originating from backsplash orbits
• The oxygen abundance gradients in the gas discs of galaxies in the EAGLE simulation
• Bulge and Halo Kinematics Across the Hubble Sequence
• Low Surface Brightness Galaxies selected from the 40% sky area of the ALFALFA HI survey.I.Sample and statistical properties
• Low Surface Brightness Galaxies in the SDSS: the link between environment, star-forming properties and AGN
• The large-scale environment of low surface brightness galaxies
• Dark Matter Halo Structure in CDM Hydrodynamical Simulations
• NIHAO XXI: The emergence of Low Surface Brightness galaxies
• Is the Initial Mass Function of Low Surface Brightness Galaxies Dominated by Low Mass Stars?
• A new HI catalog of Low Surface Brightness galaxies out to z=0.1 - Tripling the number of massive LSB galaxies Known
• The cosmological significance of Low Surface Brightness galaxies found in a deep blind neutral-hydrogen survey
• Formation of a Malin 1 analogue in IllustrisTNG by stimulated accretion
• Exploring Infrared Properties of Giant Low Surface Brightness Galaxies
• Spitzer Observations of Low Luminosity Isolated and Low Surface Brightness Galaxies
• A Dimensional study of Disk Galaxies
• HIghMass -- High HI Mass, HI-rich Galaxies at z~0: Sample Definition, Optical and Halpha Imaging, and Star Formation Properties
• Deep optical images of Malin 1 reveal new features
• VLT Spectroscopy of Globular Clusters in Low Surface Brightness Dwarf Galaxies
• Baryon effects on void statistics in the EAGLE simulation
• Revealing the properties of void galaxies and their assembly using the EAGLE simulation
• Are ultra-diffuse galaxies Milky Way-sized?
• Stellar Populations and the Star Formation Histories of LSB Galaxies: I. Optical and H-alpha Imaging
• The Faint End of the Luminosity Function and Low Surface Brightness Galaxies
• The formation of low surface brightness galaxies in the IllustrisTNG simulation
• Massive Low Surface Brightness Galaxies in the EAGLE Simulation
• Disc-like Objects in Hierarchical Hydrodynamical Simulations: Comparison with Observations
• NIHAO XXIV: Rotation or pressure supported systems? Simulated Ultra Diffuse Galaxies show a broad distribution in their stellar kinematics
• An optical search for Low Surface Brightness Galaxies in the Arecibo HI Strip Survey
• Inferring dark halo structure from observed scaling laws of late type galaxies and LSB's
• Low and High Surface Brightness Galaxies at Void Walls
• Giant Low Surface Brightness Galaxies : Evolution in Isolation
• Structural properties of faint low surface brightness galaxies
• The assembly of spheroid-dominated galaxies in the EAGLE simulation
• UGC 1378 -- a Milky Way-sized galaxy embedded in a giant low-surface brightness disc
• An expanded catalogue of low surface brightness galaxies in the Coma cluster using Subaru/Suprime-Cam
• An $\mathrm{H}\alpha$ Imaging Survey of the Low Surface Brightness Galaxies Selected from the Spring Sky Region of the 40% ALFALFA HI Survey
• Discovery of a Nearby Low-Surface-Brightness Spiral Galaxy
• On the environment of Low Surface Brightness galaxies at different scales
• Evidence for a Large Stellar Bar in the LSB Galaxy UGC 7321
• Environment, morphology and stellar populations of bulgeless low surface brightness galaxies
• The giant low surface brightness galaxy Malin 1: new constraints for its molecular gas mass from GBT/ARGUS observations
• Signs of `Everything Everywhere All At Once' formation in low surface brightness globular cluster-rich dwarf galaxies
• Understanding the chemical evolution of blue Edge-on Low Surface Brightness Galaxies
• A MUSE View of the Core of the Giant Low Surface Brightness Galaxy Malin 1
• The v_c-sigma_c relation in low mass and low surface brightness galaxies
• The role of the elaphrocentre in void galaxy formation
• Simulating a slow bar in the low surface brightness galaxy UGC 628
• Stellar Metallicity of Galaxies: New Insight on the Formation and Evolution of Low Surface Brightness Galaxies in the IllustrisTNG Simulation
• Exploring the outskirts of the EAGLE disc galaxies