Comparison between Disk-like Objects Formed in Hierarchical Hydrodynamical Simulations and Observations of Spiral Galaxies

(2) Instituto de Astronomia y Fisica del Espacio; (3) University of British Columbia; Argentina; A. Saiz (1); Buenos Aires; Canada); Madrid; P. B. Tissera (2); R. Dominguez-Tenreiro (1); S. Courteau (3) ((1) Universidad Autonoma de Madrid

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Comparison between Disk-like Objects Formed in Hierarchical Hydrodynamical Simulations and Observations of Spiral Galaxies

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arxiv astro-ph/0101490 v1 pith:2X5X3I2V submitted 2001-01-26 astro-ph

A. Saiz (1) , R. Dominguez-Tenreiro (1) , P. B. Tissera (2) , S. Courteau (3) ((1) Universidad Autonoma de Madrid , Madrid , Spain , (2) Instituto de Astronomia y Fisica del Espacio , Buenos Aires

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Argentina (3) University of British Columbia Vancouver Canada)

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We analyze the structural and dynamical properties of disk-like objects formed in fully consistent cosmological simulations which include inefficient star formation. Comparison with data of similar observable properties of spiral galaxies gives satisfactory agreement, in contrast with previous findings using other codes. This suggests that the stellar formation implementation used has allowed the formation of disks as well as guaranteed their stability.

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