CAOSP abstracts, Volume: 55, No.: 3, year: 2025

Author(s): Iliev, L.; Miroshnichenko, A.
Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 55, no. 3, p. 470-473.
Date: 04/2025
Title: Spectral variations of Be/shell star Pleione connected with its 218 d binary period
Keyword(s): emission line stars, binary stars, Be stars, shell stars, circumstellar disks
Pages: 470 -- 473
DOI: https://doi.org/10.31577/caosp.2025.55.3.470
NASA ADS Abstract Service: 2025CoSka..55c.470I
Citation:
License: This work is licensed under a Creative Commons Attribution 4.0 International License

Abstract: Pleione is a prototype of a group of Be/shell stars that represent cyclic changes in their spectral appearance. The star was suspected to be a binary or multiple system . In the present study we are trying to obtain more precise picture of going on spectral changes of Pleione by data-mining in existing archives of Be stars spectral observations. New results reveal unknown before details about developments in the circumstellar envelope of Pleione, connected with the interactions in the system.