First direct detection of an RR Lyrae star conclusively associated with an intermediate-age cluster

First direct detection of an RR Lyrae star conclusively associated with an intermediate-age cluster
Cecilia Mateu (UdelaR, Uruguay), Bolivia Cuevas-Otahola (BUAP, M’exico), Juan Jos’e Downes (UdelaR, Uruguay)
arXiv:2509.22336v2 Announce Type: replace
Abstract: RR Lyrae stars have long been considered unequivocal tracers of old (>10 Gyr) and metal-poor ($mathrm{[Fe/H]}arXiv:2509.22336v2 Announce Type: replace
Abstract: RR Lyrae stars have long been considered unequivocal tracers of old (>10 Gyr) and metal-poor ($mathrm{[Fe/H]}