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Galaxy and Mass Assembly (GAMA): Selection of the Most Massive Clusters

Published online by Cambridge University Press:  12 October 2016

Héctor J. Ibarra-Medel ,
Maritza Lara-López  and
Omar López-Cruz
Héctor J. Ibarra-Medel
Affiliation:
National Institute of Astrophysics, Optics and Electronic, Luis Enrique Erro No 1, Tonantzintla, Puebla, México email: omarlx@inaoep.mx email: ibarram@inaoep.mx
Maritza Lara-López
Affiliation:
Institute of Astronomy, National Autonomous University of México, Box 70-264, M{éxico} City, México email: maritza@astro.unam.mx
Omar López-Cruz
Affiliation:
National Institute of Astrophysics, Optics and Electronic, Luis Enrique Erro No 1, Tonantzintla, Puebla, México email: omarlx@inaoep.mx
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Abstract

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We have developed a galaxy cluster finding technique based on the Delaunay Tessellation Field Estimator (DTFE) combined with caustic analysis. Our method allows us to recover clusters of galaxies within the mass range of $10^{12}$ to $10^{16}\ \mathcal{M}_{\odot}$. We have found a total of 113 galaxy clusters in the Galaxy and Mass Assembly survey (GAMA). In the corresponding mass range, the density of clusters found in this work is comparable to the density traced by clusters selected by the thermal Sunyaev Zel'dovich Effect; however, we are able to cover a wider mass range. We present the analysis of the two-point correlation function for our cluster sample.

Keywords

methods: data analysissurveysgalaxies: clusters: generalcosmology: miscellaneouscosmology: observations
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S308: The Zeldovich Universe: Genesis and Growth of the Cosmic Web , June 2014 , pp. 215 - 216
Copyright
Copyright © International Astronomical Union 2016 

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