CAOSP abstracts, Volume: 50, No.: 2, year: 2020

Author(s): Rosu, S.; Rauw, G.; Gosset, E.; Manfroid, J.; Royer, P.
Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 50, no. 2, p. 624-626.
Date: 3/2020
Title: Apsidal motion in the massive binary HD 152248
Keyword(s): stars: early-type, stars: individual (HD 152 248), stars: massive, binaries: spectroscopic, binaries: eclipsing
Pages: 624 -- 626
DOI: https://doi.org/10.31577/caosp.2020.50.2.624
NASA ADS Abstract Service: 2020CoSka..50..624R
Citation:
License: This work is licensed under a Creative Commons Attribution 4.0 International License

Abstract: The eccentric massive binary HD 152 248, hosting two very similar O7.5 III(f) stars, is the most emblematic eclipsing O-star binary in the very young and rich open cluster NGC 6231. Measuring the rate of apsidal motion in such a binary system gives insight into the internal structure and evolutionary state of the stars composing it.