The rise and fall of the UV upturn: $z=0.3,0.55$ and $0.7$

Sadman Ali, Malcolm Bremer, Steven Phillipps +7

We have analysed the strength of the UV upturn in red sequence galaxies with luminosities reaching to below the $L^{\ast }$ point within four clusters at $z$ = 0.3, 0.55 \& 0.7. We find…