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    • Galaxy And Mass Assembly (GAMA): Defining passive galaxy samples and searching for the UV upturn 

      S Brough; S Phillipps; E N Taylor; B W Holwerda; M J I Brown; L Wang; M E Cluver; A E Sansom; M W Grootes; K Pimbblet; A S G Robotham; S P Driver; P A James; M N Bremer; S S Ali; M Alpaslan; L J M Davies; R De Propris; A M Hopkins
      We use data from the GAMA and GALEX surveys to demonstrate that the UV upturn, an unexpected excess of ultraviolet flux from a hot stellar component, seen in the spectra of many early-type galaxies, arises from processes ...