SIMBAD references

1999A&A...343..751P - Astronomy and Astrophysics, volume 343, 751-759 (1999/3-3)

A linear near-IR Tully-Fisher relation for giant and dwarf late-type galaxies.

PIERINI D. and TUFFS R.J.

Abstract (from CDS):

We present the near-IR (K'-band, i.e.: λ=2.1µm) Tully-Fisher (TF) relation for a sample of 50 giant and dwarf late-type galaxies, selected from the Virgo Cluster Catalogue. We find that L∝VMax4 along a range of 8K'-mag for galaxies with different Hubble types (from Sa to Im-BCD), phenomenologies, structures, star-formation histories, masses, dark-to-luminous mass ratios, metallicities and, perhaps, ages. The linearity of the near-IR TF relation is in contrast with recent determinations of the optical TF relations for samples of extreme late-type and dwarf galaxies. The near-IR TF law is in agreement both with the expectation from the Fundamental Plane for disk systems and with the scenario of self-regulating star-formation in disks. The previous results suggest that the TF relation reflects the connection between the structural/dynamical properties and the star-formation process of both giant and dwarf late-type galaxies, through a gas supply for star-formation regulated by the gravitational potential of the galaxy.

Abstract Copyright:

Journal keyword(s): galaxies: distances and redshifts - galaxies: fundamental parameters - galaxies: irregular - galaxies: structure - infrared: galaxies

Simbad objects: 55

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