THE CBS SPECTRA INVESTIGATION AS METHOD OF THE PN CHEMICAL COMPOSITION ANALYSIS

Автор(и)

  • N. N. Shimanskaya Astronomy Department, Kazan State University str. Kremlevskaya, 18, Kazan, 420008 Russia, Російська Федерація
  • V. V. Shimansky Astronomy Department, Kazan State University str. Kremlevskaya, 18, Kazan, 420008, Russia, Російська Федерація
  • I. F. Bikmaev Astronomy Department, Kazan State University str. Kremlevskaya, 18, Kazan, 420008, Russia, Російська Федерація
  • N. A. Sakhibullin Astronomy Department, Kazan State University str. Kremlevskaya, 18, Kazan, 420008, Russia, Російська Федерація
  • R. Ya. Zhuchkov Astronomy Department, Kazan State University str. Kremlevskaya, 18, Kazan, 420008, Russia, Російська Федерація

DOI:

https://doi.org/10.18524/1810-4215.2007.20.87205

Ключові слова:

Stars, binary, cataclysmic, stars, individual, Sun, V471 Tau

Анотація

We report the results of the investigations of chemical composition of close binaries which had gone through the stage of common envelope and which are the remnants of planetary nebular cores. High resolution spectra for different phases of orbital period of V471 Tau were taken by RTT-150 telescope and were investigated by the modified SYNTH-K program. It was found that the spectra show noticeable variability with appearance of emission components depended on the orbital period phase. For chemical composition determination the "solar" oscillator strengths for 700 lines were taken. It was found that the chemical content of V471 Tau is composite one and characterized by excess of ?-process elements in the contrast to small underabundance of iron-peak elements. The estimation of different elements excesses allows to determine their contents in planetary nebular phase.

Посилання

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Опубліковано

2007-12-22

Номер

Том 20 № 1 (2007)

Розділ

Статті

Ліцензія

Авторське право (c) 2016 Odessa Astronomical Publications

Creative Commons License

Ця робота ліцензується відповідно до Creative Commons Attribution-NonCommercial 4.0 International License.

Відповідно Закону України про авторське право і суміжні права N 3792-XII від 23 грудня 1993 року