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Astron. Astrophys. 339, L85-L88 (1998)

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Letter to the Editor

A fractal galaxy distribution in a homogeneous universe?

Ruth Durrer 1 and Francesco Sylos Labini 1, 2

1 Département de Physique Théorique, Université de Genève, 24, Quai E. Ansermet, CH-1211 Genève, Switzerland
2 INFM Sezione Roma1, Dip. di Fisica, Universitá "La Sapienza", P.le A. Moro, 2, I-00185 Roma, Italy

Received 19 August 1998 / Accepted 12 October 1998


In this letter we present an idea which reconciles a homogeneous and isotropic Friedmann universe with a fractal distribution of galaxies. We use two observational facts: The flat rotation curves of galaxies and the (still debated) fractal distribution of galaxies with fractal dimension [FORMULA]. Our idea can also be interpreted as a redefinition of the notion of bias.

Key words: large scale structure of universe – cosmology: theory – cosmology: dark matter – galaxies: general

© European Southern Observatory (ESO) 1998

Online publication: October 22, 1998