Period Analysis of the Light Curves of Three Semiregular Variables: AA Cygni, U Delphini, and RX Bootis

Details Period Analysis of the Light Curves of Three Semiregular Variables: AA Cygni, U Delphini, and RX Bootis Period Analysis of the Light Curves of Three Semiregular Variables: AA Cygni, U Delphini, and RX Bootis

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006javso..35...88s&link_type=abstract

The Journal of the American Association of Variable Star Observers, Vol. 35, No. 1, p. 88-90

Physics

1

Scientific paper

New visual observations confirm the presence of the ~210-day period in
the light curve of AA Cyg, and the ~1150-day period in U Del. RX Boo
exhibits double periodicity, with periods of 160 and 278 days, present
since 1991. Clearly, RX Boo is a new member of the small group of
double-mode red giants.

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