Nonradial Modes in the Galactic Bulge RR Lyrae Stars

P. Moskalik
2000 International Astronomical Union Colloquium  
AbstractOGLE-1 photometry of RR Lyrae stars has been analyzed in search of multiperiodic pulsations. A second periodicity corresponding to a nonradial mode has been found in 11 RRab and 2 RRc variables.
doi:10.1017/s025292110005795x fatcat:fduehzwsffhvphji3zwv7g6eoy