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

Author(s): Oplištilová, A.; Harmanec, P.; Mayer, P.; Zasche, P.; Šlechta, M.; Pablo, H.; Pigulski, A.; the BRITE Team
Journal: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 50, no. 2, p. 585-589.
Date: 3/2020
Title: Improved model of Delta Orionis
Keyword(s): eclipsing binary stars, spectroscopic analysis, light curves
Pages: 585 -- 589
DOI: https://doi.org/10.31577/caosp.2020.50.2.585
NASA ADS Abstract Service: 2020CoSka..50..585O
Citation:
License: This work is licensed under a Creative Commons Attribution 4.0 International License

Abstract: We present an improved model of triple star delta Orionis A. For the first time we were able to disentangle the very weak spectral lines of the secondary in the blue parts of the optical spectrum and derive a reliable mass ratio q = 0.415. Along with light-curve solutions, based on photometry from the SMEI, MOST and BRITE satellites, we obtained realistic masses and radii of both components of the close binary.