The constant density region of the dark halos of spiral galaxies

Details The constant density region of the dark halos of spiral galaxies The constant density region of the dark halos of spiral galaxies

2000-07-26

arxiv.org/abs/astro-ph/0007389v1

Mon.Not.Roy.Astron.Soc. 320 (2001) L1

Astronomy and Astrophysics

Astrophysics

12 pages, 4 figures. MNRAS accepted

Scientific paper

10.1046/j.1365-8711.2001.04076.x

From the kinematics of 137 spirals we find that the DM halo density profiles are self-similar at least out to R_opt and show core radii much larger that the corresponding disk scale-lenghts. The luminous regions of spirals consist of stellar disks embedded in dark halos with roughly constant density. With respect to previous work, the present evidence is obtained by means of a robust method and for a large and complete sample of normal spirals.

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