AMICO galaxy clusters in KiDS-DR3: evolution of the luminosity function between z=0.1 and z=0.8
By means of the band luminosity function (LF) of galaxies in a sample of about 4000 clusters detected by the cluster finder AMICO in the KiDS-DR3 area of about 400 deg, we studied the evolution with richness and redshift of the passive evolving (red), star-forming (blue), and total galaxy population...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
2021
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| In: |
Astronomy and astrophysics
Year: 2021, Volume: 645, Pages: 1-15 |
| ISSN: | 1432-0746 |
| DOI: | 10.1051/0004-6361/202039259 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1051/0004-6361/202039259 Verlag, lizenzpflichtig, Volltext: https://www.aanda.org/articles/aa/abs/2021/01/aa39259-20/aa39259-20.html 
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| Author Notes: | E. Puddu, M. Radovich, M. Sereno, S. Bardelli, M. Maturi, L. Moscardini, F. Bellagamba, C. Giocoli, F. Marulli, and M. Roncarelli |
| Summary: | By means of the band luminosity function (LF) of galaxies in a sample of about 4000 clusters detected by the cluster finder AMICO in the KiDS-DR3 area of about 400 deg, we studied the evolution with richness and redshift of the passive evolving (red), star-forming (blue), and total galaxy populations. This analysis was performed for clusters in the redshift range [0.1, 0.8] and in the mass range [10<sup>13<sup/> <i>M<i/><sub>⊙<sub/>, 10<sup>15<sup/> <i>M<i/><sub>⊙<sub/>].<i>Methods.<i/> To compute LFs, we binned the luminosity distribution in magnitude and statistically subtracted the background. Then, we divided the cluster sample in bins of both redshift and richness/mass. We stacked LF counts in each 2D bin for the total, red, and blue galaxy populations; finally, we fitted the stacked LF with a Schechter function and studied the trend of its parameters with redshift and richness/mass.<i>Results.<i/> We found a passive evolution with <i>z<i/> for the bright part of the LF for the red and total populations and no significant trends for the faint galaxies. The mass/richness dependence is clear for the density parameter Φ<sub>⋆<sub/>, increasing with richness, and for the total population faint end, which is shallower in the rich clusters. |
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| Item Description: | Published online 21 December 2020 Gesehen am 09.02.2022 |
| Physical Description: | Online Resource |
| ISSN: | 1432-0746 |
| DOI: | 10.1051/0004-6361/202039259 |