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Modelling the Galaxy Bimodality: Shutdown Above a Critical Halo Mass

Abstract:

We reproduce the blue and red sequences in the observed joint distribution of colour and magnitude for galaxies at low and high redshifts using hybrid N-body/semi-analytic simulations of galaxy formation. The match of model and data is achieved by mimicking the effects of cold flows versus shock heating coupled to feedback from active galactic nuclei (AGNs), as predicted by Dekel and Birnboim (2006). After a critical epoch z=3, only haloes below a critical shock-heating mass 10^12MSun enjoy g...

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Publication status:
Published

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Authors


Cattaneo, A More by this author
Devriendt, J More by this author
Guiderdoni, B More by this author
Blaizot, J More by this author
Journal:
Mon.Not.Roy.Astron.Soc.
Volume:
370
Issue:
4
Pages:
1651-1665
Publication date:
2006-01-13
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
URN:
uuid:f85f3708-8f49-4bf7-8d75-7272f6cad2d9
Source identifiers:
23737
Local pid:
pubs:23737
Language:
English
Keywords:

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