Simulating the evolution of disc galaxies in a group environment. II. The influence of close-encounters between galaxies

Abstract

We study the evolution of disc galaxies in group environments under the effect of both the global tidal field and close-encounters between galaxies, using controlled N-body simulations of isolated mergers. We find that close-range encounters between galaxies are less frequent and less damaging to disc galaxies than originally expected, since they mostly occur when group members have lost a significant fraction of their initial mass to tidal stripping. We also find that group members mostly affect disc galaxies indirectly by modifying their common global tidal field. Different initial orbital parameters of group members introduce a significant "scatter" in the evolution of general properties of disc galaxies around a "median" evolution that is similar to when only the effect of the global tidal field is included. Close-encounters introduce a high variability in the properties of disc galaxies, even slowing their evolution in some cases, and could wash out correlations between galaxy properties and the group total mass. The combined effect of the global tidal field and close-encounters appears to be inefficient at forming/enhancing central stellar bulges. This implies that bulges of S0 galaxies should be mostly composed by young stars, which is consistent with recent observations.

arXiv comment16 pages, 6 figures, 4 tables. Shortened abstract and minor additions. Accepted for publication in MNRAS

References in corpus (53)

• A Universal Density Profile from Hierarchical Clustering
• Galaxy Harassment and the Evolution of Clusters of Galaxies
• Evolution since z = 0.5 of the Morphology-Density relation for Clusters of Galaxies
• Galaxy Star-Formation as a Function of Environment in the Early Data Release of the Sloan Digital Sky Survey
• The 2dF Galaxy Redshift Survey: The environmental dependence of galaxy star formation rates near clusters
• Properties of Galaxy Groups in the SDSS: I.-- The Dependence of Colour, Star Formation, and Morphology on Halo Mass
• Merger rates in hierarchical models of galaxy formation. II: Comparison with N-body simulations
• The bimodal galaxy color distribution: dependence on luminosity and environment
• Galaxy evolution in groups and clusters: satellite star formation histories and quenching timescales in a hierarchical Universe
• Galaxy evolution in groups and clusters: star formation rates, red sequence fractions, and the persistent bimodality
• The Properties of Poor Groups of Galaxies: I. Spectroscopic Survey and Results
• On the Survival and Destruction of Spiral Galaxies in Clusters
• Dynamical Friction and Galaxy Merging Timescales
• The Metamorphosis of Tidally Stirred Dwarf Galaxies
• The Growth and Structure of Dark Matter Haloes
• K-band Properties of Galaxy Clusters and Groups: Luminosity Function, Radial Distribution and Halo Occupation Number
• Galaxy Groups in the SDSS DR4: II. halo occupation statistics
• Galaxy Groups in the SDSS DR4: III. the luminosity and stellar mass functions
• The accretion of galaxies into groups and clusters
• The environmental history of group and cluster galaxies in a LambdaCDM Universe
• Tidal stirring and the origin of dwarf spheroidals in the Local Group
• Why does the environmental influence on group and cluster galaxies extend beyond the virial radius?
• Morphological evolution of disk galaxies in clusters
• The Color-Magnitude Relation in CL 1358+62 at z=0.33: Evidence for Significant Evolution in the S0 Population
• On the formation and physical properties of the Intra-Cluster Light in hierarchical galaxy formation models
• Dynamical Evolution of Galaxies in Clusters
• The Assembly of Galaxy Clusters
• Morphological Composition of z~0.4 groups: The site of S0 formation
• On the Efficiency of the Tidal Stirring Mechanism for the Origin of Dwarf Spheroidals: Dependence on the Orbital and Structural Parameters of the Progenitor Disky Dwarfs
• Transformation from spirals into S0s with bulge growth in groups of galaxies
• Galactic star formation enhanced and quenched by ram pressure in groups and clusters
• Galaxy Zoo: The Environmental Dependence of Bars and Bulges in Disc Galaxies
• Stellar Ages and Metallicities of Central and Satellite Galaxies: Implications for Galaxy Formation and Evolution
• Pre-Processing and Post-Processing in Group-Cluster Mergers
• Tidal evolution of disky dwarf galaxies in the Milky Way potential: the formation of dwarf spheroidals
• The colour of galaxies in distant groups
• The Hubble Sequence in Groups: The Birth of the Early-Type Galaxies
• Spectroscopic bulge-disc decomposition: a new method to study the evolution of lenticular galaxies
• The Relation Between Galaxy Morphology and Environment in the Local Universe: An RC3-SDSS Picture
• The Hierarchical Origins of Observed Galaxy Morphology
• The Environmental Dependence of the Evolving S0 Fraction
• Simulating the evolution of disc galaxies in a group environment. I. The influence of the global tidal field
• Dwarf galaxy populations in present-day galaxy clusters - II. The history of early-type and late-type dwarfs
• The dependence of tidal stripping efficiency on the satellite and host galaxy morphology
• Mergers in Galaxy Groups - I. Structure and Properties of Elliptical Remnants
• Reversal or no reversal: the evolution of the star formation rate-density relation up to z~1.6
• The Importance of Interactions for Mass Loss from Satellite Galaxies in Cold Dark Matter Haloes
• Effects on Galaxy Evolution: Pair Interactions versus Environment
• Stellar population gradients in Fornax Cluster S0 galaxies: connecting bulge and disk evolution
• Linking haloes to galaxies: how many halo properties are needed?
• Do group dynamics play a role in the evolution of member galaxies?
• Evolution in the Disks and Bulges of Group Galaxies since z=0.4
• An improved prescription for merger time-scales from controlled simulations

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