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The firrst spectra for the RX J0440.9+4431 from 2m Terskol telescope
Репозиторій DSpace/Manakin
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The firrst spectra for the RX J0440.9+4431 from 2m Terskol telescope
Посилання:
The firrst spectra for the RX J0440.9+4431 from 2m Terskol telescope / A. Simon, A.V. Bondar, V.M. Reshetnyk // Advances in Astronomy and Space Physics. — 2011. — Т. 1., вип. 1-2. — С. 13-14. — Бібліогр.: 5 назв. — англ.
Підтримка:
This work was supported by the International program Astronomy in the Elbrus region (2010-2014) of ICAMER. We thanks the stu of the ICAMER for the help in observations. V. M. Ivchenko for the valuable discussions, E. A. Karitskaya and N. G. Bochkarev for the help and support. Especial thanks to Ju. Kuznetzova for the help in the data reduction.
Дата:
2011
Переглядів:
678
Завантажень:
232
Анотація:
We present the rst results on the spectra of Be/X-ray binary RX J0440.9+4431 obtained with the 2m Ritchey-Chretein-Coude telescope with Cassegrain Multi Mode Spectrograph (CMMS) (with R = 14000) at Terskol observatory. The Hα line pro le indicates that the new episode of the V/R variability is occuring in the system. The pro les of the Hα, Hβ and He i 7065.71, 6678.15, 5875.97 lines were analyzed and equivalent width were determined. We compared our Hα line pro le parameters with the previous results from Reig et al. (2005) and estimated characteristic time scale for disc changes as about 14 years.
