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| Paper: |
The GOODS-MUSIC Sample: Evolution of the Luminosity Function of Red and Blue Galaxies |
| Volume: |
380, At the Edge of the Universe: Latest Results from the Deepest Astronomical Surveys |
| Page: |
551 |
| Authors: |
Salimbeni, S.; Giallongo, E.; Grazian, A. |
| Abstract: |
Using data from the GOODS public survey we analysed the galaxy properties in terms of the colour and specific star formation rate (SSFR) distributions. More specifically we analysed the galaxy bimodal distribution up to relatively high redshift (z ≃ 3). We used these properties to separate the galaxy sample in two populations (red-blue using colour; early-late using SSFR). We have then studied the evolution of the red/early and blue/late luminosity function (LF) and of the luminosity density. For the blue galaxies we find a luminosity evolution with a brightening of M* in the z = 0.2−1 interval and at higher redshift a constant LF. For the red sample, we find at the bright-end of the LF a constant density in the range 0.2 − 0.67 and a density reduction by a factor 5 up to redshift 3.5. For the red population we also find a characteristic shape for the LF, with a minimum around MB(AB) = −18 and with a turn up at fainter magnitude. This shape has been represented by a double Schechter function. |
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