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BIBTEX RIS

The universal rotation curve of spiral galaxies - II. The dark matter distribution out to the virial radius

2007; Oxford University Press; Volume: 378; Issue: 1 Linguagem: Inglês

10.1111/j.1365-2966.2007.11696.x

ISSN

1365-2966

Autores

P. Salucci, A. Lapi, Chiara Tonini, G. Gentile, I. Yegorova, U. Klein,

Tópico(s)

Stellar, planetary, and galactic studies

Resumo

In the current ΛCDM cosmological scenario, N-body simulations provide us with a universal mass profile, and consequently a universal equilibrium circular velocity of the virialized objects, as galaxies. In this paper we obtain, by combining kinematical data of their inner regions with global observational properties, the universal rotation curve of disc galaxies and the corresponding mass distribution out to their virial radius. This curve extends the results of Paper I, concerning the inner luminous regions of Sb–Im spirals, out to the edge of the galaxy haloes.

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