University of Sussex
Browse
10-1093-MNRAS-stv2075.pdf (5.19 MB)

Galaxy and mass assembly (GAMA): projected galaxy clustering

Download (5.19 MB)
journal contribution
posted on 2023-06-09, 01:16 authored by D J Farrow, Shaun Cole, Peder Norberg, N Metcalfe, I Baldry, Joss Bland-Hawthorn, Michael J I Brown, A M Hopkins, Cedric G Lacey, J Liske, Jonathan LovedayJonathan Loveday, David P Palamara, A S G Robotham, Srivatsan Sridhar
We measure the projected two-point correlation function of galaxies in the 180 deg2 equatorial regions of the GAMA II survey, for four different redshift slices between z = 0.0 and 0.5. To do this, we further develop the Cole 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 preparation) and Gonzalez-Perez et al., and find that the models reproduce the trend of stronger clustering for more massive galaxies. However, the models underpredict the clustering of blue galaxies, can incorrectly predict the correlation function on small scales and underpredict the clustering in our sample of galaxies with ~3L * r ~3Lr* . We suggest possible avenues to explore to improve these clustering 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.

Funding

Astronomy rolling grant; G0278; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/I000976/1

History

Publication status

  • Published

File Version

  • Published version

Journal

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

Publisher

Oxford University Press

Issue

2

Volume

454

Page range

2120-2145

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2016-05-16

First Open Access (FOA) Date

2016-05-16

First Compliant Deposit (FCD) Date

2016-05-16

Usage metrics

    University of Sussex (Publications)

    Categories

    No categories selected

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC