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The cosmological evolution of the QSO luminosity density and of the star formation rate

B. J. Boyle·Roberto Terlevich
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Abstract

We demonstrate that the evolution of the QSO luminosity density with epoch displays a striking similarity to the cosmological evolution of the field galaxy star formation rate, recently derived from a number of independent surveys. The QSO luminosity density at 2800A is approximately one-fortieth that implied by the star formation rate in galaxies throughout the past 11 Gigayears (z<4). This similarity suggests that a substantial fraction of the QSO luminosity may be closely linked to the star formation process and its evolution with cosmic time.

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B. J. Boyle, Roberto Terlevich. 1997-10-14. The cosmological evolution of the QSO luminosity density and of the star formation rate. https://doi.org/10.1046/j.1365-8711.1998.01264.x

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