SIMBAD references

2007MNRAS.377..507Y - Mon. Not. R. Astron. Soc., 377, 507-515 (2007/May-2)

The radial Tully-Fisher relation for spiral galaxies - I.


Abstract (from CDS):

We find a new Tully-Fisher-like relation for spiral galaxies holding at different galactocentric radii. This radial Tully-Fisher relation allows us to investigate the distribution of matter in the optical regions of spiral galaxies. This relation, applied to three different samples of rotation curves of spiral galaxies, directly proves that: (i) the rotation velocity of spirals is a good measure of their gravitational potential and both the rotation curve's amplitudes and profiles are well predicted by galaxy luminosity, (ii) the existence of a dark component, less concentrated than the luminous one, and (iii) a scaling law, according to which, inside the disc optical size: Mdark/Mlum= 0.5(LB/1011LB)–0.7.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): galaxies: kinematics and dynamics - galaxies: spiral - dark matter

CDS comments: At the end of the Table A6 : the 20 UGC galaxies with 6 digits are AGC galaxies.

Simbad objects: 161

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