Structure of visible and dark matter components of spiral galaxies at z = 0.9

Details Structure of visible and dark matter components of spiral galaxies at z = 0.9 Structure of visible and dark matter components of spiral galaxies at z = 0.9

2004-12-14

arxiv.org/abs/astro-ph/0412322v1

PoS BDMH2004 (2004) 092

Astronomy and Astrophysics

Astrophysics

3 pages, 3 figures. Presented at the "Baryons in Dark Matter Halos" conference in Croatia, to appear in the conference proceed

Scientific paper

We construct self-consistent light and mass distribution models for 4 distant spiral galaxies. The models include a bulge, a disk and an isothermal dark matter. We find the luminosity profiles to have much steeper cut-off than that of a simple exponential disk. We apply k-corrections and derive rest-frame B-band mass-to-light ratios of the visible components and the central densities of the dark halos; we discover no significant evolution with redshift of these parameters.

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