Merger histories of brightest group galaxies from MUSE stellar kinematics

Abstract

Using Multi-Unit Spectroscopic Explorer (MUSE) spectroscopy, we analyse the stellar kinematics of 18 brightest group early-type (BGEs) galaxies, selected from the Complete Local-Volume Groups Sample (CLoGS). We analyse the kinematic maps for distinct features, and measure specific stellar angular momentum within one effective radius (${\lambda }_e$). We classify the BGEs as fast (10/18) or slow (8/18) rotators, suggesting at least two different evolution paths. We quantify the anti-correlation between higher-order kinematic moment $h_3$ and V/$\sigma$ (using the ${\xi }_3$ parameter), and the kinematic misalignment angle between the photometric and kinematic position angles (using the $\Psi$ parameter), and note clear differences between these parameter distributions of the fast and slow rotating BGEs. We find that all 10 of our fast rotators are aligned between the morphological and kinematical axis, consistent with an oblate galaxy shape, whereas the slow rotators are spread over all three classes: oblate (1/8), triaxial (4/8), and prolate (3/8). We place the results into context using known radio properties, X-ray properties, and observations of molecular gas. We find consistent merger histories inferred from observations for the fast-rotating BGEs, indicating that they experienced gas-rich mergers or interactions, and these are very likely the origin of the cold gas. Observational evidence for the slow rotators are consistent with gas-poor mergers. For the slow rotators with cold gas, all evidence point to cold gas cooling from the intragroup medium.

arXiv commentAccepted for publication in MNRAS

References in corpus (145)

• Astropy: A Community Python Package for Astronomy
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• Simulating the joint evolution of quasars, galaxies and their large-scale distribution
• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• Parametric Recovery of Line-of-Sight Velocity Distributions from Absorption-Line Spectra of Galaxies via Penalized Likelihood
• First results from the IllustrisTNG simulations: the stellar mass content of groups and clusters of galaxies
• The hierarchical formation of the brightest cluster galaxies
• Improving the full spectrum fitting method: accurate convolution with Gauss-Hermite functions
• 3D-HST+CANDELS: The Evolution of the Galaxy Size-Mass Distribution since $z=3$
• Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations
• CALIFA, the Calar Alto Legacy Integral Field Area survey: I. Survey presentation
• The Atlas3D project -- I. A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria
• Formation of Massive Galaxies at High Redshift: Cold Streams, Clumpy Disks and Compact Spheroids
• 2MASS Extended Source Catalog: Overview and Algorithms
• First Results from the TNG50 Simulation: The evolution of stellar and gaseous disks across cosmic time
• HyperLEDA. III. The catalogue of extragalactic distances
• The MUSE second-generation VLT instrument
• The SAURON project - V. Integral-field emission-line kinematics of 48 elliptical and lenticular galaxies
• 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
• Galaxies in a simulated $\Lambda$CDM Universe I: cold mode and hot cores
• The Atlas3D project - XV. Benchmark for early-type galaxies scaling relations from 260 dynamical models: mass-to-light ratio, dark matter, Fundamental Plane and Mass Plane
• Theoretical Challenges in Galaxy Formation
• The Merger Rates and Mass Assembly Histories of Dark Matter Haloes in the Two Millennium Simulations
• The Indo-U.S. Library of Coude Feed Stellar Spectra
• The SAURON project -- X. The orbital anisotropy of elliptical and lenticular galaxies: revisiting the (V/sigma,epsilon) diagram with integral-field stellar kinematics
• Kinemetry: a generalisation of photometry to the higher moments of the line-of-sight velocity distribution
• Structure and Kinematics of Early-Type Galaxies from Integral-Field Spectroscopy
• The Horizon-AGN simulation: morphological diversity of galaxies promoted by AGN feedback
• The stellar mass assembly of galaxies in the Illustris simulation: growth by mergers and the spatial distribution of accreted stars
• The ATLAS3D project - II. Morphologies, kinemetric features and alignment between photometric and kinematic axes of early-type galaxies
• The Atlas3D project - VII. A new look at the morphology of nearby galaxies: the kinematic morphology-density relation
• Formation of early-type galaxies from cosmological initial conditions
• Galaxy groups in the 2dFGRS: the group-finding algorithm and the 2PIGG catalogue
• Diffuse Light in the Virgo Cluster
• Towards a realistic population of simulated galaxy groups and clusters
• Galaxy and Mass Assembly (GAMA): The GAMA Galaxy Group Catalogue (G3Cv1)
• Kinematic Structure of Merger Remnants
• Evolutionary stellar population synthesis with MILES - II. Scaled-solar and α-enhanced models
• The MUSE Hubble Ultra Deep Field Survey: I. Survey description, data reduction and source detection
• The ATLAS${}^{3D}$ project - XXV: Two-dimensional kinematic analysis of simulated galaxies and the cosmological origin of fast and slow rotators
• The MASSIVE Survey - I. A Volume-Limited Integral-Field Spectroscopic Study of the Most Massive Early-Type Galaxies within 108 Mpc
• The SAURON project - XII. Kinematic substructures in early-type galaxies: evidence for disks in fast rotators
• The Atlas3D Project - VI. Simulations of binary galaxy mergers and the link with Fast Rotators, Slow Rotators, and Kinematically Distinct Cores
• Morphology and star formation in IllustrisTNG: the build-up of spheroids and discs
• Bar Diagnostics in Edge-On Spiral Galaxies. III. N-Body Simulations of Disks
• The SAMI Galaxy Survey: Revisiting Galaxy Classification Through High-Order Stellar Kinematics
• SDSS-IV MaNGA: Stellar angular momentum of about 2300 galaxies: unveiling the bimodality of massive galaxy properties
• Stellar kinematics across the Hubble sequence in the CALIFA survey: General properties and aperture corrections
• Transformation from spirals into S0s with bulge growth in groups of galaxies
• Rotation and anisotropy of galaxies revisited
• Effect of environment on galaxies mass-size distribution: unveiling the transition from outside-in to inside-out evolution
• The Dawes Review 1: Kinematic studies of star-forming galaxies across cosmic time
• The line of sight velocity distributions of simulated merger remnants
• 2-Dimensional Kinematics of Simulated Disc Merger Remnants
• The Atlas3D project - XXIV. The intrinsic shape distribution of early-type galaxies
• Specific Angular Momentum of Disc Merger Remnants and the ${\lambda }_R$-Parameter
• Orbital structure of merger remnants: Trends with gas fraction in 1:1 mergers
• The MASSIVE Survey - V. Spatially-Resolved Stellar Angular Momentum, Velocity Dispersion, and Higher Moments of the 41 Most Massive Local Early-Type Galaxies
• The WISE Extended Source Catalogue (WXSC) I: The 100 Largest Galaxies
• The ATLAS3D Project-- VIII: Modelling the Formation and Evolution of Fast and Slow Rotator Early-Type Galaxies within $\Lambda$CDM
• The MASSIVE Survey - VII. The Relationship of Angular Momentum, Stellar Mass and Environment of Early-Type Galaxies
• The Fornax 3D project: unveiling the thick disk origin in FCC 170: signs of accretion?
• The GIST Pipeline: A Multi-Purpose Tool for the Analysis and Visualisation of (Integral-field) Spectroscopic Data
• The SAMI Galaxy Survey: mass as the driver of the kinematic morphology - density relation in clusters
• The Origin and Evolution of Fast and Slow Rotators in the Illustris Simulation
• The connection between mass, environment and slow rotation in simulated galaxies
• Simulating Groups and the IntraGroup Medium: The Surprisingly Complex and Rich Middle Ground Between Clusters and Galaxies
• Kinematics of Simulated Galaxies I: Connecting Dynamical and Morphological Properties of Early-Type Galaxies at Different Redshifts
• The SAMI Galaxy Survey: comparing 3D spectroscopic observations with galaxies from cosmological hydrodynamical simulations
• Scaling Properties of Galaxy Groups
• The Complete Local Volume Groups Sample - I. Sample Selection and X-ray Properties of the High-Richness Subsample
• The NGC 5846 Group: Dynamics and the Luminosity Function to M_R=-12
• Probing the merger history of red early-type galaxies with their faint stellar substructures
• Census and classification of low-surface-brightness structures in nearby early-type galaxies from the MATLAS survey
• The SAURON Project - XIX. Optical and near-infrared scaling relations of nearby elliptical, lenticular and Sa galaxies
• The SAMI Pilot Survey: The Kinematic Morphology-Density Relation in Abell 85, Abell 168 and Abell 2399
• The Atlas3D project - XXVI. HI discs in real and simulated fast and slow rotators
• Distribution of Slow and Fast Rotators in the Fornax Cluster
• The MASSIVE Survey - VIII. Stellar Velocity Dispersion Profiles and Environmental Dependence of Early-Type Galaxies
• The origin of the atomic and molecular gas contents of early-type galaxies. II. Misaligned gas accretion
• The SAMI Galaxy Survey: Stellar and gas misalignments and the origin of gas in nearby galaxies
• Formation of S0 galaxies through mergers: Explaining angular momentum and concentration change from spirals to S0s
• Fast and slow rotators in the densest environments: a FLAMES/GIRAFFE IFS study of galaxies in Abell 1689 at z=0.183
• The Formation of Disks in Elliptical Galaxies
• Radial kinematics of brightest cluster galaxies
• Black Hole Mass Measurements of Radio Galaxies NGC 315 and NGC 4261 Using ALMA CO Observations
• Formation of slowly rotating early-type galaxies via major mergers: a Resolution Study
• On the depletion and accretion timescales of cold gas in local early-type galaxies
• The stellar halos of ETGs in the IllustrisTNG simulations: the photometric and kinematic diversity of galaxies at large radii
• Galaxy merger histories and the role of merging in driving star formation at z>1
• SDSS-IV MaNGA: The kinematic-morphology of galaxies on the mass vs star-formation relation in different environments
• The origin and properties of massive prolate galaxies in the Illustris simulation
• Building gas rings and rejuvenating S0 galaxies through minor mergers
• Fast and Slow Rotators in the Densest Environments: a SWIFT IFS study of the Coma Cluster
• The MASSIVE Survey - X. Misalignment between Kinematic and Photometric Axes and Intrinsic Shapes of Massive Early-Type Galaxies
• The diverse nature and formation paths of slow rotator galaxies in the EAGLE simulations
• Simulating multiple merger pathways to the central kinematics of early-type galaxies
• The SAMI Pilot Survey: Stellar Kinematics of Galaxies in Abell 85, 168 and 2399
• Cold gas in a complete sample of group-dominant early-type galaxies
• Interaction between the intergalactic medium and central radio source in the NGC 4261 group of galaxies
• Mergers in Galaxy Groups - I. Structure and Properties of Elliptical Remnants
• The SAMI Galaxy Survey: the intrinsic shape of kinematically selected galaxies
• Cold gas in group-dominant elliptical galaxies
• Climbing to the top of the galactic mass ladder: evidence for frequent prolate-like rotation among the most massive galaxies
• The imprint of dissipation on the shapes of merger remnant LOSVDs
• The SAMI Galaxy Survey: a statistical approach to an optimal classification of stellar kinematics in galaxy surveys
• Stellar orbits in cosmological galaxy simulations: the connection to formation history and line-of-sight kinematics
• The Growth and Enrichment of the Intragroup Gas
• The two formation pathways of S0 galaxies
• A MeerKAT view of pre-processing in the Fornax A group
• Abundance ratios and IMF slope in the dwarf elliptical galaxy NGC~1396 with MUSE
• Probing the kinematic morphology-density relation of early-type galaxies with MaNGA
• CALIFA reveals Prolate Rotation in Massive Early-type Galaxies: A Polar Galaxy Merger Origin?
• Integral field spectroscopy of ionized and molecular gas in cool cluster cores: evidence for cold feedback?
• Cores and the Kinematics of Early-Type Galaxies
• Early-type galaxy spin evolution in the Horizon-AGN simulation
• Diversity in the stellar velocity dispersion profiles of a large sample of Brightest Cluster Galaxies $z\le 0.3$
• Line-of-sight velocity distributions of elliptical galaxies from collisionless mergers
• Formation channels of slowly rotating early-type galaxies
• SDSS-IV MaNGA: The intrinsic shape of slow rotator early-type galaxies
• Galaxies with prolate rotation in Illustris
• The SAMI Galaxy Survey: Mass and Environment as Independent Drivers of Galaxy Dynamics
• The close pair fraction of BCGs since $z=0.5$: major mergers dominate recent BCG stellar mass growth
• The dynamical structure of isotropic spherical galaxies with a central black hole
• The impact of AGN on stellar kinematics and orbits in simulated massive galaxies
• Kinematic analysis of EAGLE simulations: Evolution of ${\lambda }_{Re}$ and its connection with mergers and gas accretion
• The Complete Local Volume Groups Sample - II. A study of the Central Radio Galaxies in the High$-$Richness Sub-sample
• The Complete Local Volume Groups Sample -- III. Characteristics of group central radio galaxies in the Local Universe
• Accurate Identification of Galaxy Mergers with Stellar Kinematics
• Evidence for Impact of Galaxy Mergers on Stellar Kinematics of Early-type Galaxies
• SDSS-IV MaNGA : spatial resolved properties of kinematically misaligned galaxies
• Prospects for Recovering Galaxy Intrinsic Shapes from Projected Quantities
• Star-Gas Misalignment in Galaxies: II. Origins Found from the Horizon-AGN Simulation
• Mapping Accreted Stars in Early-Type Galaxies Across the Mass-Size Plane
• The MASSIVE Survey XIV -- Stellar Velocity Profiles and Kinematic Misalignments from 200 pc to 20 kpc in Massive Early-type Galaxies
• Atacama Compact Array Measurements of the Molecular Mass in the NGC 5044 Cooling Flow Group
• Dynamical masses of brightest cluster galaxies I: stellar velocity anisotropy and mass-to-light ratios
• The Complete Local Volume Groups Sample -- IV. Star formation and gas content in group-dominant galaxies
• The Stellar Mass Assembly of Low Redshift, Massive, Central Galaxies in SDSS and the TNG300 simulation
• The detailed nature of active central cluster galaxies
• The SAMI Galaxy Survey: Kinematics of stars and gas in brightest group galaxies; the role of group dynamics
• Ubiquitous signs of interactions in early-type galaxies with prolate rotation
• A Dust Lane in the Radio galaxy 3C270
• Galaxy And Mass Assembly (GAMA) Survey: The Merging Potential of Brightest Group Galaxies

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• Kinematics of the diffuse intragroup and intracluster light in groups and clusters of galaxies in the Local Universe within 100 Mpc distance
• Spatially-resolved properties of early-type group-dominant galaxies with MUSE: gas content, ionisation mechanisms and metallicity gradients
• COSMOS Brightest Group Galaxies -- III: Evolution of stellar ages
• Intracluster light is a biased tracer of the dark matter distribution in clusters
• The formation channels of multiphase gas in nearby early-type galaxies
• Elliptical (E) and ellicular (ES) galaxies in the M_bh-M_*,sph diagram, and a merger-driven explanation for the origin of ES galaxies, anti-truncated stellar discs in lenticular galaxies, and the Sersicification of E galaxy light profiles
• Multi-spin stellar velocity maps of the most massive galaxies
• Forged by Feedback: Stellar Properties of Brightest Group Galaxies in Cosmological Simulations
• The kinematic imprinting of environmental quenching in $z<0.2$ galaxies
• The relationship between warm and hot gas-phase metallicity in massive elliptical galaxies and the influence of AGN feedback