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MPG.PuRe
Article . 2015
Data sources: MPG.PuRe
Monthly Notices of the Royal Astronomical Society
Article . 2015 . Peer-reviewed
Data sources: Crossref
https://dx.doi.org/10.48550/ar...
Article . 2015
License: arXiv Non-Exclusive Distribution
Data sources: Datacite
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Galaxy and mass assembly (GAMA): projected galaxy clustering

Authors: Farrow, D.J.; Cole, S.; Norberg, P.; Metcalfe, N.; Baldry, I.; Bland-Hawthorn, J.; Brown, M.J.I.; +7 Authors

Galaxy and mass assembly (GAMA): projected galaxy clustering

Abstract

We measure the projected 2-point correlation function of galaxies in the 180 deg$^2$ equatorial regions of the GAMA II survey, for four different redshift slices between z = 0.0 and z=0.5. To do this we further develop the Cole (2011) method of producing suitable random catalogues for the calculation of correlation functions. We find that more r-band luminous, more massive and redder galaxies are more clustered. We also find that red galaxies have stronger clustering on scales less than ~3 $h^{-1}$ Mpc. We compare to two different versions of the GALFORM galaxy formation model, Lacey et al (in prep.) and Gonzalez-Perez et al. (2014), and find that the models reproduce the trend of stronger clustering for more massive galaxies. However, the models under predict the clustering of blue galaxies, can incorrectly predict the correlation function on small scales and under predict the clustering in our sample of galaxies with ~3$L_r$ . We suggest possible avenues to explore to improve these cluster- ing predictions. The measurements presented in this paper can be used to test other galaxy formation models, and we make the measurements available online to facilitate this.

Accepted for publication by MNRAS

Countries
Netherlands, United Kingdom
Keywords

Cosmology and Nongalactic Astrophysics (astro-ph.CO), Large-scale structure of Universe, Galaxies: evolution, FOS: Physical sciences, Galaxies: formation, evolution [Galaxies], formation [Galaxies], Astrophysics - Astrophysics of Galaxies, 520, Large-scale structure of Universe., Astrophysics of Galaxies (astro-ph.GA), galaxies: formation, large-scale structure of Universe, galaxies: evolution, QB, Astrophysics - Cosmology and Nongalactic Astrophysics

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    60
    popularity
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    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
60
Top 10%
Top 10%
Top 10%
Green
gold