Abstract We model blue and 60 μm extragalactic number counts and redshift distributions with evolutionary models in which galaxies periodically undergo transient starburst events. We find support for the hypothesis that the same starburst phenomenon is responsible for the excess source counts seen at both wavelengths, though observed at lower mean redshift in the far infrared than in the blue. The soft X-ray emission from these evolving starburst events is not likely to exceed the 2 kev background unless the evolutionary rate is greater than (1+z)3 (luminosity or density evolution) and the redshift of galaxy formation is greater than about 5.


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    Title :

    Evolving starburst galaxies, faint number counts, and the 2kev background


    Contributors:
    Lonsdale, C. (author) / Harmon, R. (author)

    Published in:

    Advances in Space Research ; 11 , 2 ; 333-336


    Publication date :

    1991-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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