ON THE MODULATION OF RR LYRAE STARS IN THE GLOBULAR CLUSTER M3
ON THE MODULATION OF RR LYRAE STARS IN THE GLOBULAR CLUSTER M3
A new, extended time-series photometry of M3 RR Lyrae stars has revealed that four of the ten double-mode stars show large-amplitude Blazhko modulation of both radial modes. The first, detailed analysis of the peculiar behavior of the unique, Blazhko RRd stars is given. While the P1/P0 period ratio is normal, …