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Farrow, DJ, Cole, S, Norberg, P, Metcalfe, N, Baldry, IK, Bland-Hawthorn, J, Brown, MJI, Hopkins, AM, Lacey, CG, Liske, J, Loveday, J, Palamara, DP, Robotham, ASG and Sridhar, S (2015) Galaxy and Mass Assembly (GAMA): Projected Galaxy Clustering. Monthly Notices of the Royal Astronomical Society, 454 (2). pp. 2120-2145. ISSN 0035-8711
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1509.02159v1.pdf - Accepted Version Download (3MB) | Preview |
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.
| Item Type: | Article |
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| Additional Information: | This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record Galaxy and Mass Assembly (GAMA): Projected Galaxy Clustering is available online at: http://dx.doi.org/10.1093/mnras/stv2075 |
| Uncontrolled Keywords: | astro-ph.GA; astro-ph.GA; astro-ph.CO |
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Astrophysics Research Institute |
| Publisher: | Oxford University Press |
| Related URLs: | |
| Date Deposited: | 15 Sep 2015 10:29 |
| Last Modified: | 04 Sep 2021 13:58 |
| DOI or ID number: | 10.1093/mnras/stv2075 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/2015 |
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