The Herbig Be Star IL Cep A as a Long-Periodic Spectroscopic Binary

A new challenge in the study of young stars:Massive HBE stars

“…A study of the SED curves of a group of stars in the OB1 star cluster located in the Orion Nebula showed that, although this star cluster is considered a young star-forming complex, Vega-type features are also observed around some of the stars located here [39,40]. These results show that the evolution period of circumstellar disks depends on the age of the stars, their mass, spectral class, possibly chemical composition, etc., and depend on other factors.…”

“…and coauthors. Especially HD179218, AB Aur, IL Cep, and other stars of the medium and large mass HAe/Be type were extensively studied, and the activity observed in the emission spectrum and the physical properties of these stars were extensively studied [36,37,39,40]. In this direction, the SED curves of 56 stars located in the Orion OB2 starformation region in the range of 0.26 − 100µm were constructed, the IR radiation excess around them was estimated, and the fundamental parameters of these stars were determined.…”