SPECTRAL AND PHOTOMETRICAL PROPERTIES OF SELECTED MASSIVE HERBIG AeBe STARS

Abstract

This paper presents the results of spectral and photometric studies of six selected massive Herbig Ae/Be stars conducted during 2023–2024. Spectral observations reveal significant variability in the emission-line spectra over time intervals ranging from one month to one year. Spectral energy distributions (SEDs) were constructed to characterize the state of the circumstellar disks. Our analysis shows that two of the six stars possess evolved debris disks with weak residual dust emission. The fundamental physical parameters of the stars were calculated, and their evolutionary status was determined. MWC 300 appears to be a more evolved system exhibiting strong excess infrared radiation, which is likely related to its binary nature.