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The spectrum of gas emission in selected regions of the Irr starburst galaxy IC 10статья
- Авторы: Egorov O.V., Lozinskaya T.A., Moiseev A.V.
- Журнал: Astronomical & Astrophysical Transactions: The Journal of the Eurasian Astronomical Society
- Том: 27
- Номер: 3
- Год издания: 2012
- Первая страница: 447
- Последняя страница: 454
- Аннотация: We present the results of observations of the Irr galaxy IC 10 at the SAO RAS 6-m telescope with the SCORPIO focal reducer operating in the long-slit spectrograph mode. The work has been continued after the conference and here we add the new results of the integral-field MPFS observations of the galaxy. Based on these data we have analyzed the ionized-gas emission spectrum in the region of intense star formation and refined the gas metallicity estimates. Using the new improved ionization models by Martin-Manjon et al. [1], we have determined the gas ionization parameters and ionizing-clusters ages and masses from the spectra of the investigated HII regions. The cluster ages and masses are shown to be within the ranges 2.5–5 Myr and (0.2–1)×105M, respectively. We have determined the relative O/H, N/H and S/H abundances in about twenty HII regions of the galaxy.
- Добавил в систему: Егоров Олег Владимирович