The SAMI galaxy survey: Galaxy Interactions and Kinematic Anomalies in Abell 119

Abstract

Galaxy mergers are important events that can determine the fate of a galaxy by changing its morphology, star-formation activity and mass growth. Merger systems have commonly been identified from their disturbed morphologies, and we now can employ Integral Field Spectroscopy to detect and analyze the impact of mergers on stellar kinematics as well. We visually classified galaxy morphology using deep images (${\mu }_{\mathrm{r}}=28\mathrm{mag}\mathrm{arcse}{\mathrm{c}}^{-2}$) taken by the Blanco 4-m telescope at the Cerro Tololo Inter-American Observatory. In this paper we investigate 63 bright ($M_{\mathrm{r}}<-19.3$) spectroscopically-selected galaxies in Abell 119; of which 53 are early type and 20 galaxies show a disturbed morphology by visual inspection. A misalignment between the major axes in the photometric image and the kinematic map is conspicuous in morphologically-disturbed galaxies. Our sample is dominated by early-type galaxies, yet it shows a surprisingly tight Tully-Fisher relation except for the morphologically-disturbed galaxies which show large deviations. Three out of the eight slow rotators in our sample are morphology disturbed. The visually-selected morphologically-disturbed galaxies are generally more asymmetric, visually as well as kinematically. Our findings suggest that galaxy interactions, including mergers and perhaps fly-bys, play an important role in determining the orientation and magnitude of galaxy's angular momentum.

11 pages, 10 figures, accepted for publication in ApJ

References in corpus (23)

• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• The SAURON project -- IX. A kinematic classification for early-type galaxies
• The SAURON project -- X. The orbital anisotropy of elliptical and lenticular galaxies: revisiting the (V/sigma,epsilon) diagram with integral-field stellar kinematics
• The SAMI Galaxy Survey: instrument specification and target selection
• The effect of galaxy mass ratio on merger--driven starbursts
• The Atlas3D project -- XXIX. The new look of early-type galaxies and surrounding fields disclosed by extremely deep optical images
• Kinemetry of SINS High-Redshift Star-Forming Galaxies: Distinguishing Rotating Disks from Major Mergers
• Galaxy pairs in the Sloan Digital Sky Survey - IX: Merger-induced AGN activity as traced by the Wide-field Infrared Survey Explorer
• The Structures of Distant Galaxies I: Galaxy Structures and the Merger Rate to z~3 in the Hubble Ultra-Deep Field
• The SAMI Galaxy Survey: Early Data Release
• Evidence for Merger Remnants in Early-Type Host Galaxies of Low-Redshift QSOs
• The SAMI Galaxy Survey: Cubism and covariance, putting round pegs into square holes
• The SAMI Galaxy Survey: Towards a unified dynamical scaling relation for galaxies of all types
• IMAGES I. Strong evolution of galaxy kinematics since z=1
• Recovering the intrinsic shape of early-type galaxies
• On the lifetime of merger features of equal-mass disk mergers
• Spectacular Shells in the Host Galaxy of the QSO MC2 1635+119
• The SAMI Pilot Survey: The Kinematic Morphology-Density Relation in Abell 85, Abell 168 and Abell 2399
• Distribution of Slow and Fast Rotators in the Fornax Cluster
• Fast and slow rotators in the densest environments: a FLAMES/GIRAFFE IFS study of galaxies in Abell 1689 at z=0.183
• The merger fraction of active and inactive galaxies in the local Universe through an improved non-parametric classification
• 2D velocity fields of simulated interacting disc galaxies

Cited by in corpus (17)

• On the evolution of galaxy spin in a cosmological hydrodynamic simulation of galaxy clusters
• The SAMI Galaxy Survey: Decomposed Stellar Kinematics of Galaxy Bulges and Disks
• Implications for the origin of dwarf early-type galaxies: a detailed look at the isolated rotating dwarf early-type galaxy CG 611, with ramifications for the Fundamental Plane's (S_K)^2 kinematic scaling and the spin-ellipticity diagram
• Physical properties of the X-ray gas as a dynamical diagnosis for galaxy clusters
• The SAMI Galaxy Survey: The Low-Redshift Stellar Mass Tully-Fisher Relation
• Evidence for Impact of Galaxy Mergers on Stellar Kinematics of Early-type Galaxies
• Galaxy Rotation Coherent with the Motions of Neighbors: Discovery of Observational Evidence
• SH$\alpha$DE: Survey description and mass-kinematics scaling relations for dwarf galaxies
• The SAMI Galaxy Survey: Using Tidal Streams and Shells to Trace the Dynamical Evolution of Massive Galaxies
• Massive Galaxy Mergers Have Distinctive Global HI Profiles
• Impact of Galaxy Mergers on Stellar Population Profiles of Early-type Galaxies
• BANG-MaNGA: A census of kinematic discs and bulges across mass and star formation in the local Universe
• Decomposing galaxies with BANG: an automated morpho-kinematical decomposition of the SDSS-DR17 MaNGA survey
• Maximally informed Bayesian modelling of disc galaxies
• Excess of diffuse gamma-ray emission detected from the galaxy cluster Abell 119 from 14-year Fermi-LAT Data
• The Next Generation Virgo Cluster Survey (NGVS). XL. The Morphological Classification of Virgo Cluster Galaxies
• Morpho-kinematic of galaxies at cosmic noon