most citedAre the double-mode bulge RR Lyrae stars with identical period-ratios the relic of a disrupted stellar system?

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astro-ph.SR2019★ 6 cited

Are the double-mode bulge RR Lyrae stars with identical period-ratios the relic of a disrupted stellar system?

Andrea Kunder, Alex Tilton, Dylon Maertens +6

Radial velocities of fifteen double-mode bulge RR Lyrae (RR01) stars are presented, six of which belong to a compact group of RR01 stars in pulsation space, with the ratio of first…