GAMA: the effect of environment on galaxy emission line properties

Oliver Steele, Daniel Thomas, Claudia Maraston, James Etherington, GAMA Collaboration

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We study the influence of environment on emission line properties using the Galaxy And Mass Assembly (GAMA) survey, taking care to disentangle the role of mass and environment. We look at the role of local density separating galaxies into classifications star forming, AGN, and SF/AGN composite using the BPT diagnostic diagram. We find that environment is generally less important as a driving factor than galaxy mass. The presence of emission lines, whether driven by star formation or central supermassive black hole activity mostly depends on galaxy mass consistently for all galaxy types.

Original languageEnglish
Title of host publicationThe Intriguing Life of Massive Galaxies
EditorsDaniel Thomas, Anna Pasquali, Ignacio Ferreras
PublisherCambridge University Press
Number of pages4
ISBN (Print)9781107033849
Publication statusPublished - 1 Aug 2012

Publication series

NameProceedings of the International Astronomical Union
NumberSymposium S295
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221


  • galaxies: active
  • galaxies: evolution
  • galaxies: general


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