Star formation efficiency in galaxy interactions and mergers: a statistical study

Abstract

We investigate the enhancement of star formation efficiency in galaxy interactions and mergers, by numerical simulations of several hundred galaxy collisions. All morphological types along the Hubble sequence are considered in the initial conditions of the two colliding galaxies, with varying bulge-to-disk ratios and gas mass fractions. Different types of orbits are simulated, direct and retrograde, according to the initial relative energy and impact parameter, and the resulting star formation history is compared to that occuring in the two galaxies when they are isolated. Our principal results are: (1) retrograde encounters have a larger star formation efficiency (SFE) than direct encounters; (2) the amount of gas available in the galaxy is not the main parameter governing the SFE in the burst phase; (3) there is an anticorrelation between the amplitude of the star forming burst and the tidal forces exerted per unit of time, which is due to the large amount of gas dragged outside the galaxy by tidal tails in strong interactions; (4) globally, the Kennicutt-Schmidt law is retrieved statistically for isolated galaxies, interacting pairs and mergers; (5) the enhanced star formation is essentially occurring in nuclear starbursts, triggered by inward gas flows driven by non-axisymmetries in the galaxy disks. Direct encounters develop more pronounced asymmetries than retrograde ones. Based on these statistical results, we derive general laws for the enhancement of star formation in galaxy interactions and mergers, as a function of the main parameters of the encounter.

22 pages, 37 figures, 4 tables. Accepted on Astronomy & Astrophysics

References in corpus (38)

• Star Formation in Galaxies Along the Hubble Sequence
• The Global Schmidt Law in Star Forming Galaxies
• High Redshift Galaxies in the Hubble Deep Field. Color Selection and Star Formation History to z=4
• Gasdynamics and Starbursts in Major Mergers
• Lyman Break Galaxies at z>4 and the Evolution of the UV Luminosity Density at High Redshift
• A Unified Model for the Evolution of Galaxies and Quasars
• The CANADA-FRANCE REDSHIFT SURVEY XIII: The luminosity density and star-formation history of the Universe to z ~ 1
• The Star Formation Rate and Dense Molecular Gas in Galaxies
• The Nature of High-Redshift Galaxies
• The history of star formation in a LCDM universe
• Hubble Space Telescope imaging of the CFRS and LDSS redshift surveys - IV. Influence of mergers in the evolution of faint field galaxies from z~1
• Feedback in simulations of disc-galaxy major mergers
• The influence of gas on the structure of merger remnants
• The Formation of a Realistic Disk Galaxy in Lambda Dominated Cosmologies
• Galaxy Formation: CDM, Feedback and the Hubble Sequence
• The K-band luminosity function at z=1: a powerful constraint on galaxy formation theory
• The Star Formation Rate in disk galaxies: thresholds and dependence on gas amount
• Shock-induced star formation in a model of the Mice
• Lopsided spiral galaxies: evidence for gas accretion
• The Spitzer Spirals, Bridges, and Tails Interacting Galaxy Survey: Interaction-Induced Star Formation in the Mid-Infrared
• Simulations of Galaxy Formation in a Lambda CDM Universe III: The Dissipative Formation of an Elliptical Galaxy
• The K20 survey. IV. The redshift distribution of Ks<20 galaxies: a test of galaxy formation models
• Generating Hot Gas in Simulations of Disk-Galaxy Major Mergers
• The gas content of peculiar galaxies: strongly interacting systems
• The Off-nuclear Starbursts In NGC 4038/4039 (The Antennae Galaxies)
• Continuous stellar mass-loss in N-body models of galaxies
• A universal probability distribution function for weak-lensing amplification
• Fueling the AGN
• Star formation rates and mass distributions in interacting galaxies
• Star formation rates of distant luminous infrared galaxies derived from Halpha and IR luminosities
• Cold gas and star formation in a merging galaxy sequence
• Double Starbursts Triggered by Mergers in Hierarchical Clustering Scenarios
• Photometric Properties of Lyman-break Galaxies at z=3 in Cosmological SPH Simulations
• Analysis of Star Formation in Galaxy-like Objects
• Modelling Galaxies with a 3d Multi-Phase ISM
• The influence of numerical parameters on tidally triggered bar formation
• High resolution observations of a starburst at z=0.223: resolved CO(1-0)
• Secular evolution versus hierarchical merging: galaxy evolution along the Hubble sequence, in the field and rich environments

Cited by in corpus (355)

• Morphological quenching of star formation: making early-type galaxies red
• The SINS survey of z~2 galaxy kinematics: properties of the giant star forming clumps
• The effect of galaxy mass ratio on merger--driven starbursts
• Mergers and Bulge Formation in Lambda-CDM: Which Mergers Matter?
• The bulk of the black hole growth since z~1 occurs in a secular universe: No major merger-AGN connection
• CANDELS: Constraining the AGN-Merger Connection with Host Morphologies at z~2
• Regularity underlying complexity: a redshift-independent description of the continuous variation of galaxy-scale molecular gas properties in the mass-star formation rate plane
• The ATLAS${}^{3D}$ project - XXV: Two-dimensional kinematic analysis of simulated galaxies and the cosmological origin of fast and slow rotators
• The contribution of starbursts and normal galaxies to infrared luminosity functions at z < 2
• Star Formation in Galaxy Mergers with Realistic Models of Stellar Feedback & the Interstellar Medium
• Galaxy pairs in the Sloan Digital Sky Survey - VIII: The observational properties of post-merger galaxies
• On the frequency, intensity and duration of starburst episodes triggered by galaxy interactions and mergers
• Multiple minor mergers: formation of elliptical galaxies and constraints for the growth of spiral disks
• Hydrodynamics of high-redshift galaxy collisions: From gas-rich disks to dispersion-dominated mergers and compact spheroids
• Galaxy Pairs in the Sloan Digital Sky Survey - V. Tracing changes in star formation rate and metallicity out to separations of 80 kpc
• Galaxy pairs in the Sloan Digital Sky Survey - IX: Merger-induced AGN activity as traced by the Wide-field Infrared Survey Explorer
• The impact of interactions, bars, bulges, and AGN on star formation efficiency in local massive galaxies
• The star formation main sequence and stellar mass assembly of galaxies in the Illustris simulation
• Galaxy pairs in the Sloan Digital Sky Survey - VI. The orbital extent of enhanced star formation in interacting galaxies
• Equal- and unequal-mass mergers of disk and elliptical galaxies with black holes
• History of Galaxy Interactions and their Impact on Star Formation over the Last 7 Gyr from GEMS
• Ionized gas outflows and global kinematics of low-z luminous star forming galaxies
• The cold interstellar medium of galaxies in the Local Universe
• Radial migration in galactic disks caused by resonance overlap of multiple patterns: Self-consistent simulations
• The Atlas3D Project - VI. Simulations of binary galaxy mergers and the link with Fast Rotators, Slow Rotators, and Kinematically Distinct Cores
• Evolution of Galactic Discs: Multiple Patterns, Radial Migration and Disc Outskirts
• A sub-parsec resolution simulation of the Milky Way: Global structure of the ISM and properties of molecular clouds
• A definitive merger-AGN connection at z~0 with CFIS: mergers have an excess of AGN and AGN hosts are more frequently disturbed
• Radial Migration Does Little for Galactic Disc Thickening
• The impact of gas inflows on star formation rates and metallicities in barred galaxies
• Herschel-ATLAS: a binary HyLIRG pinpointing a cluster of starbursting proto-ellipticals
• Galaxy Pairs in the Sloan Digital Sky Survey - II: The Effect of Environment on Interactions
• Starbursts triggered by inter-galactic tides and interstellar compressive turbulence
• Interaction-induced star formation in a complete sample of 10^5 nearby star-forming galaxies
• Galaxy Pairs in the Sloan Digital Sky Survey - III: Evidence of Induced Star Formation from Optical Colours
• Mapping galaxy encounters in numerical simulations: The spatial extent of induced star formation
• A parsec-resolution simulation of the Antennae galaxies: Formation of star clusters during the merger
• Evolution of magnetic fields in galaxies and future observational tests with the Square Kilometre Array
• Mergers, AGN, and 'Normal' Galaxies: Contributions to the Distribution of Star Formation Rates and Infrared Luminosity Functions
• Interacting galaxies on FIRE-2: The connection between enhanced star formation and interstellar gas content
• The role of mergers in driving morphological transformation over cosmic time
• Are luminous radio-loud active galactic nuclei triggered by galaxy interactions?
• Galaxy Zoo: comparing the demographics of spiral arm number and a new method for correcting redshift bias
• HST morphologies of local Lyman break galaxy analogs I: Evidence for starbursts triggered by merging
• Less than 10 percent of star formation in z=0.6 massive galaxies is triggered by major interactions
• On the survival of metallicity gradients to major dry-mergers
• Observations and modelling of a clumpy galaxy at z=1.6: Spectroscopic clues to the origin and evolution of chain galaxies
• Tracing kinematic (mis)alignments in CALIFA merging galaxies: Stellar and ionized gas kinematic orientations at every merger stage
• A coincidence of disturbed morphology and blue UV colour: minor-merger driven star formation in early-type galaxies at z~0.6
• Chemical evolution during gas-rich galaxy interactions
• The optical morphologies of the 2Jy sample of radio galaxies: evidence for galaxy interactions
• The dilution peak, metallicity evolution, and dating of galaxy interactions and mergers
• Galaxy And Mass Assembly (GAMA): the effect of close interactions on star formation in galaxies
• Combined Effects of Galaxy Interactions and Large-Scale Environment on Galaxy Properties
• Spatially resolved star formation and fuelling in galaxy interactions
• Enhanced atomic gas fractions in recently merged galaxies: quenching is not a result of post-merger gas exhaustion
• Accounting for Stochastic Fluctuations when Analysing Integrated Light of Star Clusters. I: First Systematics
• Galaxy mergers on a moving mesh: a comparison with smoothed-particle hydrodynamics
• Interacting galaxies in the nearby Universe: only moderate increase of star formation
• Simulations of the star-forming molecular gas in an interacting M51-like galaxy
• Quantifying the role of bars in the build-up of central mass concentrations in disk galaxies
• Mapping the Dark Matter From UV Light at High Redshift: An Empirical Approach to Understand Galaxy Statistics
• Galaxy pairs in the Sloan Digital Sky Survey - XI. A new method for measuring the influence of the closest companion out to wide separations
• The Herschel Virgo Cluster Survey: X.The relationship between cold dust and molecular gas content in Virgo spirals
• The H alpha Galaxy Survey. VIII. Close companions and interactions, and the definition of starbursts
• Go with the Flow: Understanding Inflow Mechanisms in Galaxy Collisions
• Major Merging History in CANDELS. I. Evolution of the Incidence of Massive Galaxy-Galaxy Pairs from z=3 to z~0
• Spitzer mid-IR spectroscopy of powerful 2Jy and 3CRR radio galaxies. I. Evidence against a strong starburst-AGN connection in radio-loud AGN
• Late-stage galaxy mergers in COSMOS to z~1
• Massive black hole pairs in clumpy, self-gravitating circumnuclear disks: stochastic orbital decay
• Triggered Star Formation in Galaxy Pairs at z=0.08-0.38
• Probing the merger history of red early-type galaxies with their faint stellar substructures
• A hard X-ray view of Luminous and Ultra-luminous Infrared Galaxies in GOALS: I - AGN obscuration along the merger sequence
• On the lifetime of merger features of equal-mass disk mergers
• Fully compressive tides in galaxy mergers
• Starburst radio galaxies: general properties, evolutionary histories and triggering
• Interacting galaxies in the IllustrisTNG simulations -- I: Triggered star formation in a cosmological context
• The Lopsidedness of Present-Day Galaxies: Connections to the Formation of Stars, the Chemical Evolution of Galaxies, and the Growth of Black Holes
• Shocks and angular momentum flips: a different path to feeding the nuclear regions of merging galaxies
• Interacting galaxies in the IllustrisTNG simulations -- II: Star formation in the post-merger stage
• The GalMer database: Galaxy Mergers in the Virtual Observatory
• Modelling CO emission from hydrodynamic simulations of nearby spirals, starbursting mergers, and high-redshift galaxies
• A Vertical Resonance Heating Model for X- or Peanut-Shaped Galactic Bulges
• The Effect of Galaxy Interactions on Molecular Gas Properties
• NGC6240: Merger-Induced Star Formation & Gas Dynamics
• The WISSH QSOs project IX. Cold gas content and environment of luminous QSOs at z~2.4-4.7
• Dust and gas power-spectrum in M33 (HERM33ES)
• The Dynamics of Galaxy Pairs in a Cosmological Setting
• Galaxy Zoo: Quantifying Morphological Indicators of Galaxy Interaction
• The role of mergers and interactions in driving the evolution of dwarf galaxies over cosmic time
• The ISM scaling relations in DustPedia late-type galaxies: A benchmark study for the Local Universe
• Clumpy galaxies at z~0.6: kinematics, stability, and comparison with analogs at other redshifts
• Active Galactic Nucleus Pairs from the Sloan Digital Sky Survey. II. Evidence for Tidally Enhanced Star Formation and Black Hole Accretion
• Formation of S0 galaxies through mergers. Morphological properties: tidal relics, lenses, ovals, and other inner components
• Formation of S0 galaxies through mergers. Bulge-disc structural coupling resulting from major mergers
• On the influence of ram-pressure stripping on interacting galaxies in clusters
• Formation of S0 galaxies through mergers. V. Antitruncated stellar discs resulting from major mergers
• The environments of luminous radio galaxies and type-2 quasars
• The insignificance of major mergers in driving star formation at z~2
• Molecular gas and star formation in the red-sequence counter-rotating disc galaxy NGC 4550
• SDSS-IV MaNGA: Spatial Evolution of Star Formation Triggered by Galaxy Interactions
• The Zurich Environmental Study (ZENS) of Galaxies in Groups along the Cosmic Web. I. Which Environment Affects Galaxy Evolution?
• Galaxy mergers moulding the circum-galactic medium - I. The impact of a major merger
• Star formation triggered by galaxy interactions in modified gravity
• Global Star Formation Rates and Dust Emission Over the Galaxy Interaction Sequence
• Star Clusters in Evolving Galaxies
• Formation of slowly rotating early-type galaxies via major mergers: a Resolution Study
• Triggering of merger-induced starbursts by the tidal field of galaxy groups and clusters
• New criteria for the selection of galaxy close pairs from cosmological simulations: evolution of the major and minor merger fraction in MUSE deep fields
• A simple model for AGN feedback in nearby early-type galaxies
• Bars and spirals in tidal interactions with an ensemble of galaxy mass models
• The growth and assembly of a massive galaxy at z ~ 2
• The properties of the stellar populations in ULIRGs II: the star formation histories and evolution
• Formation and evolution of young massive clusters in galaxy mergers: the SMUGGLE view
• Galaxy Pairs in the Sloan Digital Sky Survey - X: Does gas content alter star formation rate enhancement in galaxy interactions?
• Galaxy Interactions in Compact Groups I : The Galactic Winds of HCG16
• Tides in colliding galaxies
• The molecular gas content in obscured AGN at z > 1
• Integral field spectroscopy of nearby QSOs II. The molecular gas content and condition for star formation
• Group connectivity in COSMOS: a tracer of mass assembly history
• The neutral gas content of post-merger galaxies
• The Imprint of Cosmic Web Quenching on Central Galaxies
• Star cluster survival and compressive tides in Antennae-like mergers
• Interstellar Medium and Star Formation of Starburst Galaxies on the Merger Sequence
• PRIMUS: Enhanced Specific Star Formation Rates In Close Galaxy Pairs
• Evolution of cosmic filaments and of their galaxy population from MHD cosmological simulations
• Star formation and nuclear activity in close pairs of early-type galaxies
• Ionized gas in E/S0 galaxies with dust lanes
• Interacting galaxies in the IllustrisTNG simulations -- IV: Enhanced Supermassive Black Hole Accretion Rates in Post-Merger Galaxies
• Star formation and ISM morphology in tidally induced spiral structures
• Environmental effects in the interaction and merging of galaxies in zCOSMOS
• Local starburst galaxies and their descendants
• Stellar populations, neutral hydrogen and ionised gas in field early-type galaxies
• Gaseous infall triggering starbursts in simulated dwarf galaxies
• The limited role of galaxy mergers in driving stellar mass growth over cosmic time
• AGN population in Hickson's Compact Groups. I. Data and Nuclear Activity Classification
• Interacting galaxies in the IllustrisTNG simulations -- III: (the rarity of) quenching in post-merger galaxies
• Probing the Interstellar Medium of z~1 Ultra-luminous Infrared Galaxies through Interferometric Observations of CO and Spitzer Mid-infrared Spectroscopy
• VALES: I. The molecular gas content in star-forming dusty H-ATLAS galaxies up to z=0.35
• The minor role of gas-rich major mergers in the rise of intermediate-mass early types at z <~ 1
• Enormous disc of cool gas surrounding the nearby powerful radio galaxy NGC 612 (PKS 0131-36)
• The role of galaxy mergers on the evolution of star clusters
• Ultraluminous Infrared Galaxies in the AKARI All Sky Survey
• The ALMaQUEST Survey X: What powers merger induced star formation?
• Galaxy interactions in IllustrisTNG-100, I: The power and limitations of visual identification
• Adaptive optics imaging and optical spectroscopy of a multiple merger in a luminous infrared galaxy
• Tidal-induced lopsidedness in Magellanic-type galaxies
• Early-type galaxy spin evolution in the Horizon-AGN simulation
• Fate of stellar bars in minor merger of galaxies
• The Formation of S0 Galaxies with Counter-Rotating Neutral and Molecular Hydrogen
• Intermediate-Age Stellar Populations in Classical QSO Host Galaxies
• Galaxy Merger Fractions in Two Clusters at $z\sim 2$ Using the Hubble Space Telescope
• The nuclear starburst in Arp 299-A: From the 5.0 GHz VLBI radio light-curves to its core-collapse supernova rate
• Dust emission profiles of DustPedia galaxies
• Star formation histories in mergers: The spatially resolved properties of the early-stage merger LIRGs IC 1623 and NGC 6090
• Numerical simulations of dwarf galaxy merger trees
• CO observations of major merger pairs at z=0: Molecular gas mass and star formation
• NGC 6340: an old S0 galaxy with a young polar disc. Clues from morphology, internal kinematics and stellar populations
• Mergers and interactions in SDSS type 2 quasars at z~0.3-0.4. SDSS J143027.66-005614.8: a case study
• Estimating non-circular motions in barred galaxies using numerical N-body simulations
• Connecting Compact Star-forming and Extended Star-forming Galaxies at Low-redshift: Implications for Galaxy Compaction and Quenching
• Galaxy mergers up to z<2.5 I : The star formation properties of merging galaxies at separations 3-15 kpc
• What triggers black-hole growth? Insights from star formation rates
• Thick-disk evolution induced by the growth of an embedded thin disk
• Disc galaxies formed from major mergers in Illustris
• A New Empirical Method to Infer the Starburst History of the Universe from Local Galaxy Properties
• Simulated Galaxy Interactions as Probes of Merger Spectral Energy Distributions
• Connections between galaxy mergers and Starburst: evidence from local Universe
• The spatially resolved star formation history of mergers: A comparative study of the LIRGs IC1623, NGC6090, NGC2623, and Mice
• Hoag's Object: Evidence for Cold Accretion onto an Elliptical Galaxy
• CO Emission, Molecular Gas, and Metallicity in Main-Sequence Star-Forming Galaxies at $z\sim 2.3$
• Extremely massive disc galaxies in the nearby Universe form through gas-rich minor mergers
• Why do extremely massive disc galaxies exist today?
• A new twist to an old story: HE 0450-2958, and the ULIRG$\to$(optically bright QSO) transition hypothesis
• Interacting Galaxies in the A901/902 Supercluster with STAGES
• Neutral hydrogen gas within and around NGC 1316
• A large sample of Kohonen selected E+A (post-starburst) galaxies from the Sloan Digital Sky Survey
• Some statistical remarks on the Giant GRB Ring
• The Role of Environment on the Formation of Early-Type Galaxies
• From HI to Stars: HI Depletion in Starbursts and Star-Forming Galaxies in the ALFALFA H-alpha Survey
• VINTERGATAN-GM: The cosmological imprints of early mergers on Milky-Way-mass galaxies
• The stellar halo in Local Group Hestia simulations I. The in-situ component and the effect of mergers
• Interacting galaxies: co-rotating and counter-rotating systems with tidal tails
• Modelling the cosmic ray electron propagation in M 51
• A Malin 1 'cousin' with counter-rotation: internal dynamics and stellar content of the giant low surface brightness galaxy UGC 1922
• Investigating The Growing Population of Massive Quiescent Galaxies at Cosmic Noon
• Star formation in galaxy interactions and mergers
• Evolution of [OIII]5007 emission-line profiles in narrow emission-line galaxies
• An environmental Butcher-Oemler effect in intermediate redshift X-ray clusters
• A forming disk at z~0.6: Collapse of a gaseous disk or major merger remnant?
• Evidence of nuclear disks in starburst galaxies from their radial distribution of supernovae
• VERTICO III: The Kennicutt-Schmidt relation in Virgo cluster galaxies
• Properties of Galaxies in Cosmic Filaments around the Virgo Cluster
• An IFU View of the Active Galactic Nuclei in MaNGA Galaxy Pairs
• Living with Neighbors. I. Observational Clues to Hydrodynamic Impact of Neighboring Galaxies on Star Formation
• A Study of Outflows in Luminous Quasars at Redshift $\sim 0.4-0.8$
• Why do many early-type galaxies lack emission lines? I. Fossil clues
• The host galaxy of GRB 980425 / SN1998bw: a collisional ring galaxy
• Double-peak emission line galaxies in the SDSS catalogue. A minor merger sequence
• Excitation of vertical breathing motion in disc galaxies by tidally-induced spirals in fly-by interactions
• Prevalence of neutral gas in centres of merging galaxies-II: nuclear HI and multi-wavelength properties
• On the Origin of the Dichotomy of Early-Type Galaxies: The Role of Dry Mergers and AGN Feedback
• Diffuse X-ray-emitting Gas in Major Mergers
• A minor merger scenario for the ultraluminous X-ray source ESO 243-49 HLX-1
• An increase in black hole activity in galaxies with kinematically misaligned gas
• Physical Properties of Massive Compact Starburst Galaxies with Extreme Outflows
• Suppressed radio emission in supercluster galaxies: enhanced ram pressure in merging clusters?
• Galaxy mergers at high resolution: From elliptical galaxies to tidal dwarfs and globular clusters
• Old stellar counter-rotating components in early-type galaxies from elliptical-spiral mergers
• Galaxy Flybys: Evolution of the Bulge, Disk, and Spiral Arms
• The formation of young massive clusters triggered by cloud-cloud collisions in the Antennae Galaxies NGC 4038/NGC 4039
• High-resolution, 3D radiative transfer modelling V. A detailed model of the M51 interacting pair
• Gas fractions and depletion times in galaxies with different degrees of interaction
• PKS0347+05: a radio-loud/radio-quiet double AGN system triggered in a major galaxy merger
• Spatially resolved star formation and dust attenuation in Mrk848: Comparison of the integral field spectra and the UV-to-IR SED
• Constraining the Milky Way assembly history with Galactic Archaeology. Ludwig Biermann Award Lecture 2015
• Origin of multiple nuclei in ultraluminous infrared galaxies
• Optical spectroscopy of Arp220: the star formation history of the closest ULIRG
• The interconnection between galaxy mergers, AGN activity and rapid quenching of star formation in simulated post-merger galaxies
• The intrinsic shape of bulges in the CALIFA survey
• Dark influences II: gas and star formation in minor mergers of dwarf galaxies with dark satellites
• Star formation in the outer regions of the early type galaxy NGC 4203
• Stellar Mass and Velocity Functions of Galaxies: Backward evolution and the fate of Milky Way siblings
• On the HI Content of MaNGA Major Merger Pairs
• Reading the tea leaves in the $M_{\mathrm{bh}}$-$M_{\ast ,\mathrm{sph}}$ and $M_{\mathrm{bh}}$-$R_{\mathrm{e},\mathrm{sph}}$ diagrams: dry and gaseous mergers with remnant angular momentum
• Termination of star formation by BH feedback in equal- and unequal-mass mergers of disk and elliptical galaxies
• Galaxy And Mass Assembly (GAMA): the interplay between galaxy mass, SFR and heavy element abundance in paired galaxy sets
• The Spatial Extent and Distribution of Star Formation in 3D-HST Mergers at z~1.5
• Concurrent starbursts in molecular gas disks within a pair of colliding galaxies at z = 1.52
• The SAMI Galaxy Survey: Kinematics of Dusty Early-Type Galaxies
• The galaxy population within the virial radius of the Perseus cluster
• Observed versus modelled u,g,r,i,z-band photometry of local galaxies - Evaluation of model performance
• A Comparative Study of Knots of Star Formation in Interacting vs. Spiral Galaxies
• Stellar Population Synthesis of star forming clumps in galaxy pairs and non-interacting spiral galaxies
• Automatic detection of peculiar galaxy pairs in Sloan Digital Sky Survey
• Starburst galaxies
• The Zurich Environmental Study (ZENS) of Galaxies in Groups along the Cosmic Web. V. Properties and Frequency of Merging Satellites and Centrals in Different Environments
• Dark influences: imprints of dark satellites on dwarf galaxies
• Composite star formation histories of early-type galaxies from minor mergers: prospects for WFC3
• Properties of the interstellar medium in star-forming galaxies at redshifts 2 < z < 5 from the VANDELS survey
• Space Debris -- Optical Measurements
• Interacting galaxies in the IllustrisTNG simulations -- V: Comparing the influence of star-forming vs. passive companions
• Activity in Galactic Nuclei of Compact Group Galaxies in the Local Universe
• Effect of low-mass galaxy interactions on their star formation
• Star-forming Dwarf Galaxies in Filamentary Structures around the Virgo Cluster: Probing Chemical Pre-processing in Filament Environments
• The EDGE-CALIFA survey: The resolved star formation efficiency and local physical conditions
• From starburst to quenching: merger-driven evolution of the star formation regimes in a shell galaxy
• The anatomy of the NGC 5044 group -- II. Stellar populations and star-formation histories
• Genesis of morpho-kinematic lopsidedness in minor merger of galaxies
• The molecular gas resolved by ALMA in the low-metallicity dwarf merging galaxy Haro 11
• FAST-ASKAP Synergy: Quantifying Coexistent Tidal and Ram Pressure Strippings in the NGC 4636 Group
• Star formation in mergers with cosmologically motivated initial conditions
• Influence of baryonic physics in galaxy simulations: a semi-analytic treatment of the molecular component
• The Origin of Stars in the Inner 500 Parsecs in TNG50 Galaxies
• The origin of double-peak emission-line galaxies: rotating discs, bars or galaxy mergers?
• Non-parametric Morphologies of Mergers in the Illustris Simulation
• Differences in star formation activity between tidally triggered and isolated bars: a case study of NGC 4303 and NGC 3627
• Massive spheroids can form in single minor mergers
• The metallicity and star formation activity of long gamma-ray burst hosts for z$<$3: insights from the Illustris simulation
• Multiwavelength radio observations of a Brightest Cluster Galaxy at z=1.71: Detection of a modest Active Galactic Nucleus and evidence for extended star formation
• The Cosmic Evolution of Halo Pairs: I. Global Trends
• UGC 4599: A Photometric Study of the Nearest Hoag-Type Ring Galaxy
• SDSS IV MaNGA: Discovery of an $H_{\alpha }$ blob associated with a dry galaxy pair -- ejected gas or a `dark' galaxy candidate?
• Identifying AGN's Balmer-Absorptions and stratified NLR kinematics in SDSSJ112611.63+425246.4
• Internal Kinematics and Stellar Populations of the Poststarburst+AGN Galaxy SDSS J230743.41+152558.4
• A z=1.85 galaxy group in CEERS: evolved, dustless, massive intra-halo light and a brightest group galaxy in the making
• A physical model for the origin of the diffuse cosmic infrared background
• The spatially resolved stellar population and ionized gas properties in the merger LIRG NGC 2623
• Gas dynamics and star formation in NGC 6822
• Quenching, bursting and galaxy shapes: colour transformation as a function of morphology
• Black hole fueling in galaxy mergers: A high-resolution analysis
• Studying Large and Small Scale Environments of Ultraviolet Luminous Galaxies
• Cosmic Sands: The Origin of Dusty, Star-forming Galaxies in the Epoch of Reionization
• The Subtle Effects of Mergers on Star Formation in Nearby Galaxies
• HI Vertical Structure of Nearby Edge-on Galaxies from CHANG-ES
• Shining Light on Merging Galaxies I: The Ongoing Merger of a Quasar with a `Green Valley' Galaxy
• Ultimate Merging at z~0.1
• Role of Feedback in AGN-HOST Coevolution: A Study from Partially Obscured Active Galactic Nuclei
• A close-pair analysis of damp mergers at intermediate redshifts
• A kinematic study of planetary nebulae in the dwarf irregular galaxy IC10
• Radio galaxies in the 2SLAQ Luminous Red Galaxy survey: II. The stellar populations of radio-loud and radio-quiet LRGs
• The ecology of dark matter haloes I: The rates and types of halo interactions
• Rings and bars: unmasking secular evolution of galaxies
• Understanding AGN-host connection in partially obscured active galactic nuclei. Part III: Properties of ROSAT-selected SDSS AGNs
• Unveiling the AGN in IC 883: discovery of a parsec-scale radio jet
• Star Formation of Merging Disk Galaxies with AGN Feedback Effects
• A Direct Linkage Between AGN Outflows in The Narrow-line Regions and The X-ray Emission From The Accretion disks
• Paired galaxies with different activity levels and their supernovae
• Can a Satellite Galaxy Merger Explain the Active Past of the Galactic Center?
• WALLABY Pilot Survey: HI gas kinematics of galaxy pairs in cluster environment
• ALMA unveils a triple merger and gas exchange in a hyper-luminous radio galaxy at z=2: the Dragonfly Galaxy (II)
• Investigating early-type galaxy evolution with a multi-wavelength approach. III. Insights from SPH simulations with chemo-photometric implementation
• Low star formation efficiency due to turbulent adiabatic compression in the Taffy bridge
• Backsplash galaxies and their impact on galaxy evolution: a three-stage, four-type perspective
• Reconstructing Orbits of Galaxies in Extreme Regions (ROGER) III: galaxy evolution patterns in projected phase space around massive X-ray clusters
• The interacting pair of galaxies Arp 82: Integral field spectroscopy and numerical simulations
• Centrally concentrated molecular gas driving galactic-scale ionised gas outflows in star-forming galaxies
• Hydrodynamical Simulations of the Triggering of Nuclear Activities by Minor Mergers of Galaxies
• Galaxy Mergers in the Epoch of Reionization II: Major Merger-Triggered Star Formation and AGN Activities at $z=$ 4.5-8.5
• From major merger to radio galaxy: low surface-brightness stellar counterpart to the giant HI ring around B2 0648+27
• Cold Molecular Gas in Merger Remnants. II. The properties of dense molecular gas
• Spectroscopically Identified Emission Line Galaxy Pairs in the WISP survey
• A close relationship at z~2: submillimetre galaxies and BzK-selected galaxies
• Galaxy And Mass Assembly (GAMA): the signatures of galaxy interactions as viewed from small scale galaxy clustering
• Property of Young Massive Clusters in a Galaxy-Galaxy Merger Remnant
• Looking inside the nest: the hidden structure of the merger galaxy NGC 1316 (Fornax A)
• Classical radio source propagating into outer HI disc in NGC 3801
• Gravitational Fragmentation in Galaxy Mergers: A Stability Criteria
• Do minor interactions trigger star formation in galaxy pairs?
• Investigating the Baryon Cycle in Interacting Dwarfs with the Very Large Array and Pan-STARRS
• Explaining the formation of bulges with MOND
• Test of Cosmic Web-feeding Model for Star Formation in Galaxy Clusters in the COSMOS Field
• Superdisks and the structural asymmetry of radio galaxies
• Unusual gas structure in an otherwise normal spiral galaxy hosting GRB 171205A / SN 2017iuk
• The effects of the orbital configurations of mergers on reshaping galaxy structures
• The X-shaped radio galaxy J0725+5835 is associated with an AGN pair
• Does Feedback from Supermassive Blackhole Co-evolve With Host In Type 2 Quasars?
• The nature of obscuration in AGN: II. insights from clustering properties
• A Study of the Merger History of the Galaxy Group HCG 62 Based on X-Ray Observations and SPH Simulations
• CO Observations of Early-mid Stage Major Mergers in the MaNGA Survey
• Star formation in galaxy mergers: ISM turbulence, dense gas excess, and scaling relations for disks and starbusts
• Reconstructing Merger Timelines Using Star Cluster Age Distributions: the Case of MCG+08-11-002
• The imprint of dark matter on the Galactic acceleration field
• Ha Velocity Fields and Galaxy Interaction in the Quartet of Galaxies NGC 7769, 7770, 7771 and 7771A
• SIT 45: An interacting, compact, and star-forming isolated galaxy triplet
• Witnessing a Transformation to Blue-cored Dwarf Early-type Galaxies in Filaments and the Cluster Outskirts: Gas-phase Abundances and Internal Kinematics Perspectives
• Properties of Molecular Gas in Galaxies in Early and Mid Stages of Interaction. III. Resolved Kennicutt-Schmidt Law
• A MaNGA view of isolated galaxy mergers in the star-forming Main Sequence
• Structure and Kinematics of Star-forming Elliptical Galaxies in SDSS-MaNGA
• Spectral Energy Distribution Mapping of Two Elliptical Galaxies on sub-kpc scales
• The Milky Way in context: The formation of galactic discs and chemical sequences from a cosmological perspective
• HI properties and star formation history of a fly-by pair of blue compact dwarf galaxies
• Resolving a merger in a hyper-luminous submillimeter galaxy at z=2.82
• Dwarf-Dwarf interactions and their influence on star formation : Insights from post-merger galaxies
• Unveiling the kinematics of a central region in the triple AGN host NGC 7733-7734 interacting group
• Time-average properties of $z\sim 0.6$ major mergers: mergers significantly scatter high-z scaling relations
• The diverse quenching pathways of post-starburst galaxies in SDSS-IV MaNGA
• Gas inflows, star formation and metallicity evolution in galaxy pairs
• The Impact of Bars, Spirals and Bulge-Size on Gas-Phase Metallicity Gradients in MaNGA Galaxies
• From galaxy-scale fueling to nuclear-scale feedback: the merger-state of radio galaxies 3C293, 3C305 & 4C12.50
• The MOSDEF Survey: A New View of a Remarkable z=1.89 Merger
• The role of environment on the evolution of disc galaxies density profiles New insights from simulations and comparison to Euclid data
• Star-forming galaxies in the cosmic web in the last 11 Gyr
• Build-up and survival of the disc: From numerical models of galaxy formation to the Milky Way
• Cosmic evolution of gas content and accretion
• Stellar populations in central cluster galaxies: the influence of cooling flows
• RIGEL: Feedback-regulated cloud-scale star formation efficiency in a simulated dwarf galaxy merger
• Central mass accumulation in nuclear spirals
• Rings of star formation: Imprints of a close galaxy encounter
• The Star Formation History of a Post-Starburst Galaxy Determined From Its Cluster Population
• The core starbursts of the galaxy NGC 3628: Radio very long baseline interferometry and X-ray studies
• A thick-disk galaxy model and simulations of equal-mass galaxy pair collisions
• Star-forming S0 Galaxies in SDSS-MaNGA: fading spirals or rejuvenated S0s?
• Dust content of core-collapse supernova hosts
• Starbursts in isolated galaxies. I. The influence of stellar birth function and IMF