Variability in B supergiant star HD91316 (
...
ρ Leo)
B supergiants show an irregular photometric and spectroscopic variability. Detecting and studying their pulsations is important for understanding the internal structure of those stars.
In this work I investigate variability of one B supergiant star - rho ρ Leonis based on long-term spectroscopy (Tõravere observatory) and photometry (K2 and TESS).
Showed frequency analysis by using such methods as WWZ, Lomb-Scargle, PDM.