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arxiv: astro-ph/0509715 · v1 · submitted 2005-09-23 · 🌌 astro-ph

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A multi-wavelength model of galaxy formation

C.G. Lacey (1) , C.M. Baugh (1) , C.S. Frenk (1) , G.L. Granato (2) , L. Silva (3) , A. Bressan (2) , S. Cole (1) ((1) ICC , Durham
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(2) Padova Observatory (3) Trieste Observatory)
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classification 🌌 astro-ph
keywords formationmodelevolutionfunctiongalaxyluminositymulti-wavelengthtreatment
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We present new results from a multi-wavelength model of galaxy formation, which combines a semi-analytical treatment of the formation of galaxies within the CDM framework with a sophisticated treatment of absorption and emission of radiation by dust. We find that the model, which incorporates a top-heavy IMF in bursts, agrees well with the evolution of the rest-frame far-UV luminosity function over the range z=0-6, with the IR number counts in all bands measured by SPITZER, and with the observed evolution of the mid-IR luminosity function for z=0-2.

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