Abstrakt
Symbiotic variable stars are interacting binaries in which matter is transferred from a cool giant by its stellar wind to a hot white dwarf, causing various manifestations of activity. The aim of our research was a detailed analysis of photometric observations of the symbiotic system AX Persei.
We extracted from the literature all available brightness measurements of this binary and constructed historical light curves in the filters U, B, V, Rc and Ic. By analysing the light curves, we identified 6 quiescent and 7 active periods during which 25 outbursts of this symbiotic binary occurred.
Our correlation analysis revealed a high degree of correlation of the AX Persei light curves in individual filters. Lower values of correlation coefficients for the combinations of the Ic light curve with ones in other filters may indicate the presence of a source of radiation manifested mainly at longer wavelengths.
By period analysis of the AX Persei light curves, we confirmed the presence of the orbital period and determined its value of (680,4 ± 4,3) days. We also detected other periods, the origin of which will need to be determined by further research.