The role of star formation in the Tully-Fisher law

Abstract

We investigate the influence of the star formation rate on the Tully-Fisher relation. We find that a simple model which combines the empirically-determined star-formation rate with the expected properties of galaxy halos provides a remarkably good fit to the absolute magnitude-rotation speed correlation. We find that the power-law nature, its slope, normalisation and scatter, are all readily accounted for if the Universe has a low density parameter, with or without a cosmological constant and disks are assembled at $z\sim 1-1.5$. Moreover, this agreement is found simultaneously in 4 wavebands. An Einstein-de Sitter Universe produces disks which are too faint unless the disks are assembled at $z\sim 0.5$. The scatter in the relation is due to a combination of the expected range of spin parameters of the halos and the range of formation redshifts. The source of the scatter opens up possibilities of a better galaxy distance indicator, if spectroscopic observations of globular clusters can be used to determine the halo rotation.

arXiv commentMNRAS in press

References in corpus (17)

• The Global Schmidt Law in Star Forming Galaxies
• The Formation of Galactic Disks
• Resolving the Structure of Cold Dark Matter Halos
• The density and peculiar velocity fields of nearby galaxies
• The Formation of Disk Galaxies
• Feedback, Disk Self-regulation and Galaxy Formation
• Global Extinction in Spiral Galaxies
• The Formation of Disk-Bulge-Halo Systems and the Origin of the Hubble Sequence
• The Tully-Fisher relation for low surface brightness galaxies - implications for galaxy evolution
• NGC 2915. II. A Dark Spiral Galaxy With A Blue Compact Dwarf Core
• Galaxy-Galaxy Lensing in the Hubble Deep Field: The Halo Tully-Fisher Relation at Intermediate Redshift
• Galaxy Formation and Evolution: Low Surface Brightness Galaxies
• Optical Rotation Curves of Distant Field Galaxies: Sub-L* Systems
• Internal Kinematics of Distant Field Galaxies: I. Emission Line Widths for a Complete Sample of Faint Blue Galaxies at <z>=0.25
• On the spin parameter of dark-matter haloes
• The Ursa Major Cluster of Galaxies. II. Bimodality of the Distribution of Central Surface Brightnesses
• Internal Kinematics of Galaxies at z=0.25-0.45

Cited by in corpus (21)

• Stellar mass-to-light ratios and the Tully-Fisher relation
• The abundance of high-redshift objects as a probe of non-Gaussian initial conditions
• A Revised Model for the Formation of Disk Galaxies: Low Spin and Dark-Halo Expansion
• The Angular Momentum of Gas in Proto-Galaxies I. Implications for the Formation of Disk Galaxies
• Scaling Relations of Spiral Galaxies
• Clustering Segregation With UV Luminosity in Lyman-Break Galaxies at z~3 and Its Implications
• The Origin of the Density Distribution of Disk Galaxies: A New Problem for the Standard Model of Disk Formation
• The Angular Momentum Content of Dwarf Galaxies: New Challenges for the Theory of Galaxy Formation
• Semi-Analytical Models for the Formation of Disk Galaxies: I. Constraints from the Tully-Fisher Relation
• Synthetic stellar populations: single stellar populations, stellar interior models and primordial proto-galaxies
• Polar Ring Galaxies and the Tully Fisher relation: implications for the dark halo shape
• Galaxy Formation in Preheated Intergalactic Media
• 3D Spectroscopy with VLT/GIRAFFE - IV: Angular Momentum and Dynamical Support of Intermediate Redshift Galaxies
• Overmerging and M/L ratios in phenomenological galaxy formation models
• Chemo-spectrophotometric evolution of spiral galaxies: V. Properties of galactic discs at high redshift
• Galactosynthesis: Halo Histories, Star Formation, and Disks
• The Fundamental Plane of Spiral Galaxies: Theoretical Expectations
• Proto-Galactic Starbursts at High Redshift
• Quantifying Morphological Evolution from Low to High Redshifts
• Where are the absorbers towards Q2302+029?
• Galactosynthesis Predictions at High Redshift