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Astron. Astrophys. 351, 442-446 (1999)


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Maximal halos in high-luminosity spiral galaxies

P. Salucci 1 and M. Persic 2

1 SISSA, Via Beirut 2-4, 34013 Trieste, Italy
2 Trieste Astronomical Observatory, Via G.B. Tiepolo 11, 34131 Trieste, Italy

Received 30 October 1997 / Accepted 18 March 1999

Abstract

We test the halo dominated mass model, recently proposed for high-luminosity galaxies, against the rotation velocity data of a large sample of [FORMULA] spirals. We find that this model does not reproduce the general kinematic properties required. The alternative disc dominated model, on the contrary, easily fits the data.

Key words: galaxies: kinematics and dynamics – galaxies: spiral – galaxies: structure – cosmology: dark matter

Send offprint requests to: P. Salucci (salucci@sissa.it)

© European Southern Observatory (ESO) 1999

Online publication: November 3, 1999

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