A multi-color study of RR Lyrae variables in the globular cluster NGC 5272 (M3)

Details A multi-color study of RR Lyrae variables in the globular cluster NGC 5272 (M3) A multi-color study of RR Lyrae variables in the globular cluster NGC 5272 (M3)

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.0706c&link_type=abstract

American Astronomical Society, 200th AAS Meeting, #07.06; Bulletin of the American Astronomical Society, Vol. 34, p.651

Astronomy and Astrophysics

Astronomy

Scientific paper

We have performed a detailed study of the pulsational and evolutionary characteristics of a large sample of RR Lyrae stars in the globular cluster NGC 5272 (M3) using highly accurate BVI data taken on three separate epochs. A Fourier decomposition analysis has been done for both RRab and RRc variables. The occurrence and characteristics of the Blazhko effect have been analyzed in particular detail. M3 seems to contain a large number of Blazhko stars, and also a number of overluminous RR Lyrae stars that may have evolved off the ZAHB.

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