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Ionized Gas and Sources of its Ionization in the Irr Galaxy IC 10

Published online by Cambridge University Press:  11 July 2011

M. Koleva ,
Ph. Prugniel ,
I. Vauglin ,
O.V. Egorov ,
V.P. Arkhipova ,
T.A. Lozinskaya  and
A.V. Moiseev
O.V. Egorov
Affiliation:
Sternberg Astronomical Institute, Moscow, Russia
V.P. Arkhipova
Affiliation:
Sternberg Astronomical Institute, Moscow, Russia
T.A. Lozinskaya
Affiliation:
Sternberg Astronomical Institute, Moscow, Russia
A.V. Moiseev
Affiliation:
Special Astrophysical Observatory of Russian Academy of Science, Nizhnii Arkhyz, Karachai-Cherkessia, Russia
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Abstract

We report the results of an analysis of the emission spectra of HII-regions in IC 10 ionized by star clusters and WR stars based on observations made with the 6-m telescope SAO RAS using MPFS field spectrograph and SCORPIO focal reducer operating in the slit spectrograph mode. We determine the masses and ages of ionizing star clusters in the violent star-forming region of the galaxy in terms of the new evolutionary models of emission-line spectra of HII-regions developed by Martin-Manjon et al. (2010). We estimate the amount of stars needed to ionize the brightest HII-region HL 111.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 48: CRAL-2010 A Universe of Dwarf Galaxies , 2011 , pp. 147 - 148
Copyright
© EAS, EDP Sciences, 2011

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References

Arkhipova, V.P., Egorov, O.V., Lozinskaya, T.A., & Moiseev, A.V., 2010, Astron. Lett., 36, No. 11, in pressCrossRef
Lozinskaya, T.A., et al., 2009, Astron. Lett., 35, 811
Martin-Manjon, M.L., et al., 2010, MNRAS, 403, 2012CrossRef
Smith, L.J., et al., 2009, MNRAS, 337, 1309CrossRef
Tikhonov, N.A., & Galazutdinova, O.A., 2010 [Astro-Ph, 1002.2046]