Investigation of diffuse interstellar bands of organic molecules in the spectra of cepheid stars
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Дата
2015
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Одеський національний університет імені І. І. Мечникова
Анотація
We describe an effective method of investigation
of the Diffuse Interstellar Bands (DIBs) in the
spectra of Cepheid stars. DIBs are believed to originate
from the absorption of such carriers as polycyclic aromatic
hydrocarbons in the interstellar gaseous clouds located
between an observer and the stars whose spectra
were recorded. We performed a detailed consideration of
the DIB at 6613 A in our sample of spectra for more than
250 stars. The quantitative characteristics of the DIB absorption
features will be studied in connection with the
interstellar absorption data, and after that, they will be
used in the mapping of the Galactic disc.
Опис
Ключові слова
ISM, bands – variables, cepheids
Бібліографічний опис
Odessa Astronomical publications = Одесские астрономические публикации = Одеські астрономічні публікації