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astro-ph.SR2011★ 27 cited
The unusually large population of Blazhko variables in the globular cluster NGC 5024 (M53)
A. Arellano Ferro, D. M. Bramich, R. Figuera Jaimes +2
We report the discovery of amplitude and phase modulations typical of the Blazhko effect in 22 RRc and 9 RRab type RR Lyrae stars in NGC 5024 (M53). This brings the confirmed Blazh…
astro-ph.SR2011★ 55 cited
Exploring the variable stars in the globular cluster NGC5024 (M53): New RR Lyrae and SX Phoenicis stars
A. Arellano Ferro, R. Figuera Jaimes, Sunetra Giridhar +3
We report CCD V and I time series photometry of the globular cluster NGC 5024 (M53). The technique of difference image analysis has been used which enables photometric precisions b…