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Examining the Big Bang and Diffuse Background Radiations pp 503–504Cite as

Evolution of Galaxy Luminosity in the CDM Model

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Part of the book series: International Astronomical Union/Union Astronomique Internationale ((IAUS,volume 168))

Abstract

We analyze the evolution of the luminosity function of galaxies using the CDM model in numerical simulations. There is an observational excess in the number counts of galaxies per square degree in the blur band Nb (i.e. APM, Maddox et. al. 1990). Several authors have tried to reproduce it trying to fit the observations. Our model assumes an instantaneous star formation rate (SFR) proportional to a power of the local density. A ‘single star burst’ is produced each time step and we follow the evolution of the luminosity and colour of each ‘stellar group’. The galaxies are identified with a density criterium. We compute U,V,B,K colours and Nb and our results agree quite well with observations.

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References

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  3. Mosconi, M., Tissera, P. and Abadi, M. 1994, Numerical Simulations in Astrophysics, ed. by J. Franco, S. Lizano, L. Aguilar and E. Daltabuit (Cambridge Univ. Press), 63

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Author information

Authors and Affiliations

  1. Observatorio Astronómico de Córdoba, Argentina

    Mirta Mosconi, Patricia Tissera & Diego García Lambas

  2. Consejo de Investigaciones Científicas y Técnicas (CONICET), Argentina

    Patricia Tissera & Diego García Lambas

Authors
  1. Mirta Mosconi
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  2. Patricia Tissera
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  3. Diego García Lambas
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Editor information

Editors and Affiliations

  1. Center for Earth Observing and Space Research, Institute for Computational Sciences & Informatics, George Mason University, Fairfax, VA, USA

    Menas Kafatos

  2. NASA/Goddard Space Flight Center, Greenbelt, MD, USA

    Yoji Kondo

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© 1996 International Astronomical Union

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Mosconi, M., Tissera, P., García Lambas, D. (1996). Evolution of Galaxy Luminosity in the CDM Model. In: Kafatos, M., Kondo, Y. (eds) Examining the Big Bang and Diffuse Background Radiations. International Astronomical Union/Union Astronomique Internationale, vol 168. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0145-2_62

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  • DOI: https://doi.org/10.1007/978-94-009-0145-2_62

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-0-7923-3815-4

  • Online ISBN: 978-94-009-0145-2

  • eBook Packages: Springer Book Archive

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