Skip to main content

Research Repository

Advanced Search

Galaxy and mass assembly (GAMA): projected galaxy clustering

Farrow, D.J.; Cole, S.; Norberg, P.; Metcalfe, N.; Baldry, I.; Bland-Hawthorn, J.; Brown, M.J.I.; Hopkins, A.M.; Lacey, C.G.; Liske, J.; Loveday, J.; Palamara, D.P.; Robotham, A.S.G.; Sridhar, S.

Galaxy and mass assembly (GAMA): projected galaxy clustering Thumbnail


D.J. Farrow

I. Baldry

J. Bland-Hawthorn

M.J.I. Brown

A.M. Hopkins

J. Liske

J. Loveday

D.P. Palamara

A.S.G. Robotham

S. 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.


Farrow, D., Cole, S., Norberg, P., Metcalfe, N., Baldry, I., Bland-Hawthorn, J., …Sridhar, S. (2015). Galaxy and mass assembly (GAMA): projected galaxy clustering. Monthly Notices of the Royal Astronomical Society, 454(2), 2120-2145.

Journal Article Type Article
Acceptance Date Sep 4, 2015
Publication Date Dec 1, 2015
Deposit Date Feb 3, 2016
Publicly Available Date Feb 10, 2016
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Electronic ISSN 1365-2966
Publisher Royal Astronomical Society
Peer Reviewed Peer Reviewed
Volume 454
Issue 2
Pages 2120-2145
Keywords Galaxies: evolution, Galaxies: formation, Large-scale structure of Universe.


Published Journal Article (5.4 Mb)

Copyright Statement
This article has been accepted for publication in Monthly notices of the Royal Astronomical Society ©: 2015 The Author Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

You might also like

Downloadable Citations