How the bar properties affect the induced spiral structure

Abstract

Stellar bars and spiral arms co-exist and co-evolve in most disc galaxies in the local Universe. However, the physical nature of this interaction remains a matter of debate. In this work, we present a set of numerical simulations based on isolated galactic models aimed to explore how the bar properties affect the induced spiral structure. We cover a large combination of bar properties, including the bar length, axial ratio, mass and rotation rate. We use three galactic models describing galaxies with rising, flat and declining rotation curves. We found that the pitch angle best correlates with the bar pattern speed and the spiral amplitude with the bar quadrupole moment. Our results suggest that galaxies with declining rotation curves are the most efficient forming grand design spiral structure, evidenced by spirals with larger amplitude and pitch angle. We also test the effects of the velocity ellipsoid in a subset of simulations. We found that as we increase the radial anisotropy, spirals increase their pitch angle but become less coherent with smaller amplitude.

Accepted for publication in MNRAS. 16 pages, 16 figures

References in corpus (70)

• Secular Evolution and the Formation of Pseudobulges in Disk Galaxies
• Radial Mixing in Galactic Discs
• Chemical Cartography with APOGEE: Metallicity Distribution Functions and the Chemical Structure of the Milky Way Disk
• What determines the strength and the slowdown rate of bars ?
• The Geneva-Copenhagen Survey of the Solar neighbourhood III. Improved distances, ages, and kinematics
• The Effect of the Outer Lindblad Resonance of the Galactic Bar on the Local Stellar Velocity Distribution
• Morphology, photometry and kinematics of N-body bars. I Three models with different halo central concentrations
• A New Mechanism for Radial Migration in Galactic Disks: Spiral-Bar Resonance Overlap
• Secular Evolution in Disk Galaxies
• Excitation of Activity in Galaxies by Minor Mergers
• Dawes Review 4: Spiral Structures in Disc Galaxies
• Self-Perpetuating Spiral Arms in Disk Galaxies
• Dynamical heating across the Milky Way disc using APOGEE and $Gaia$
• Order and chaos in the local disc stellar kinematics induced by the Galactic bar
• Hunting for open clusters in \textit{Gaia} DR2: $582$ new OCs in the Galactic disc
• A new method for unveiling Open Clusters in Gaia: new nearby Open Clusters confirmed by DR2
• The Dependence of Bar Frequency on Galaxy Mass, Colour, and Gas Content -- and Angular Resolution -- in the Local Universe
• Gas flow models in the Milky Way embedded bars
• The formation of spiral arms and rings in barred galaxies
• Characterization of galactic bars from 3.6 $\mu$m S${}^4$G imaging
• On the origin of rR_1 ring structures in barred galaxies
• Rings and spirals in barred galaxies. I Building blocks
• Revisiting the Tale of Hercules: how stars orbiting the Lagrange points visit the Sun
• Bar pattern speeds in CALIFA galaxies: I. Fast bars across the Hubble sequence
• The effect of radial migration on galactic disks
• Dynamics of stars around spiral arms in an N-body/SPH simulated barred-spiral galaxy
• Dissecting simulated disc galaxies II: the age-velocity relation
• The Distribution of Bar and Spiral Strengths in Disk Galaxies
• The effects of bar-spiral coupling on stellar kinematics in the Galaxy
• Imprints of radial migration on the Milky Way's metallicity distribution functions
• Bars do drive spiral density waves
• Gravitational bar and spiral arm torques from K_s-band observations and implications for the pattern speeds
• Gaseous Structures in Barred Galaxies: Effects of the Bar Strength
• The Effects of Radial Migration on the Vertical Structure of Galactic Discs
• SDSS-IV MaNGA: pattern speeds of barred galaxies
• The Lifetimes of Spiral Patterns in Disc Galaxies
• Effects of Gas on Formation and Evolution of Stellar Bars and Nuclear Rings in Disk Galaxies
• Constraining dark matter halo profiles and galaxy formation models using spiral arm morphology. I. Method outline
• Manifold-driven spirals in N-body barred galaxy simulations
• The nature and nurture of bars and disks
• A Technique for Separating the Gravitational Torques of Bars and Spirals in Disk Galaxies
• Spiral arm pitch angle and galactic shear rate in N-body simulations of disc galaxies
• The shapes of spiral arms in the S${}^4$G survey and their connection with stellar bars
• Dust Penetrated Arm Classes: Insights from rising and falling rotation curves
• Gas and stellar spiral structures in tidally perturbed disc galaxies
• Bars and spirals in tidal interactions with an ensemble of galaxy mass models
• A dynamical mechanism for the origin of nuclear rings
• Spiral structure in nearby galaxies II. comparative analysis and conclusions
• Disk heating agents across the Hubble sequence
• First Gaia dynamical model of the Milky Way disc with six phase space coordinates: a test for galaxy dynamics
• Stellar mass distribution of S${}^4$G disk galaxies and signatures of bar-induced secular evolution
• The Carnegie-Irvine Galaxy Survey. VI. Quantifying Spiral Structure
• Bar pattern speeds in CALIFA galaxies II. The case of weakly barred galaxies
• Kinematic clues to bar evolution for galaxies in the local universe: why the fastest rotating bars are rotating most slowly
• Galactic Rings Revisited. I. CVRHS Classifications of 3962 Ringed Galaxies from the Galaxy Zoo 2 Database
• The Mass Profile and Shape of Bars in the Spitzer Survey of Stellar Structure in Galaxies (S4G): Search for an Age Indicator for Bars
• Relations among structural parameters in barred galaxies with a direct measurement of bar pattern speed
• The analysis of realistic Stellar Gaia mock catalogues. I. Red Clump Stars as tracers of the central bar
• SDSS-IV MaNGA: Bar pattern speed estimates with the Tremaine-Weinberg method and their error sources
• Constraints on Radial Migration in Spiral Galaxies - II. Angular momentum distribution and preferential migration
• Automated detection of very Low Surface Brightness galaxies in the Virgo Cluster
• How do spiral arm contrasts relate to bars, disk breaks and other fundamental galaxy properties?
• The PCA Lens-Finder: application to CFHTLS
• Dynamics and Morphology of the Milky Way Spiral Arms from the Metallicity Distribution and Radial Mixing
• Revisiting the Stellar Velocity Ellipsoid - Hubble type relation: observations versus simulations
• The evolution of pitch angles of spiral arms
• The Contribution of Spiral Arms to the Thick Disk along the Hubble Sequence
• The Dynamical Relationship Between the Bar and Spiral Patterns of NGC 1365
• The Shearing HI Spiral Pattern of NGC 1365
• Gaia Eclipsing Binary and Multiple Systems. A study of detectability and classification of eclipsing binaries with Gaia

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• Kinematic analysis of the Large Magellanic Cloud using Gaia DR3
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• Identification of Grand-design and Flocculent Spirals from SDSS using Convolutional Neural network
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