In: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 49, no. 2
İ. Özavcı - E. Bahar - H.v. Şenavcı
Detaily:
Rok, strany: 2019, 278 - 286
Jazyk: eng
Kľúčové slová:
stars: activity, binaries: eclipsing, stars: imaging.
URL originálneho zdroja: http://www.astro.sk/caosp/Eedition/Abstracts/2019/Vol_49/No_2/pp278-286_abstract.html
O článku:
We performed Doppler imaging of the eclipsing binary ER Vul using time-series mid-resolution (R ∼ 13500) spectra of the system. The spectra were acquired via the echelle spectrograph attached to the 0.4m Kreiken Telescope at the Ankara University Kreiken Observatory. We applied Least-Squares Deconvolution (LSD) technique in order to enhance SNRs of the velocity profiles to better resolve the spot signatures. We determined the mass ratio, q, as 0.949(19) and masses of the primary and secondary components as 1.108 (33) and 1.052 (34), respectively. The reconstructed images of both components show that cool spots are preferably located at high latitudes. We also investigated the chromospheric activity behaviour with the help of the spectral synthesis method. Both photospheric and chromospheric activity variations along with the orbital phase are in accordance with each other.
Ako citovať:
ISO 690:
Özavcı, İ., Bahar, E., Şenavcı, H. 2019. Surface inhomogeneities of the eclipsing binary ER Vul. In Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 49, no.2, pp. 278-286. 1335-1842.
APA:
Özavcı, İ., Bahar, E., Şenavcı, H. (2019). Surface inhomogeneities of the eclipsing binary ER Vul. Contributions of the Astronomical Observatory Skalnaté Pleso, 49(2), 278-286. 1335-1842.
O vydaní:
Vydavateľ: Astronomical Institute, Slovak Academy of Sciences
Publikované: 1. 5. 2019
Verejná licencia:
